Home / 1,299,079,132.20-1,948,618,698.30-329,730,748.20

Finding the Fourth Proportional to 1,299,079,132.20, 1,948,618,698.30 and 329,730,748.20

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Solution

The fourth proportional to 1,299,079,132.20, 1,948,618,698.30 and 329,730,748.20 is: 494,596,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,079,132.20 : 1,948,618,698.30 = 329,730,748.20 : x
  2. Step 2: Convert to fraction form
    1,299,079,132.20/1,948,618,698.30 = 329,730,748.20/x
  3. Step 3: Cross multiply
    1,299,079,132.20x = 1,948,618,698.30 × 329,730,748.20
  4. Step 4: Simplify right side
    1,299,079,132.20x = 642,519,501,346,969,088
  5. Step 5: Solve for x
    x = 642,519,501,346,969,088/1,299,079,132.20
  6. Step 6: Final answer
    x = 494,596,122.30

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Half scale
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Double scale
Find fourth proportional to 1,299,079,133.20, 1,948,618,699.80 and 329,730,749.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.