Home / 1,299,078,767.70-1,948,618,151.55-329,730,383.70

Finding the Fourth Proportional to 1,299,078,767.70, 1,948,618,151.55 and 329,730,383.70

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Solution

The fourth proportional to 1,299,078,767.70, 1,948,618,151.55 and 329,730,383.70 is: 494,595,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,078,767.70 : 1,948,618,151.55 = 329,730,383.70 : x
  2. Step 2: Convert to fraction form
    1,299,078,767.70/1,948,618,151.55 = 329,730,383.70/x
  3. Step 3: Cross multiply
    1,299,078,767.70x = 1,948,618,151.55 × 329,730,383.70
  4. Step 4: Simplify right side
    1,299,078,767.70x = 642,518,610,795,366,272
  5. Step 5: Solve for x
    x = 642,518,610,795,366,272/1,299,078,767.70
  6. Step 6: Final answer
    x = 494,595,575.55

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Half scale
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Double scale
Find fourth proportional to 1,299,078,768.70, 1,948,618,153.05 and 329,730,384.70
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.