Home / 1,142,195,426.20-1,713,293,139.30-280,552,418.20

Finding the Fourth Proportional to 1,142,195,426.20, 1,713,293,139.30 and 280,552,418.20

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Solution

The fourth proportional to 1,142,195,426.20, 1,713,293,139.30 and 280,552,418.20 is: 420,828,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,195,426.20 : 1,713,293,139.30 = 280,552,418.20 : x
  2. Step 2: Convert to fraction form
    1,142,195,426.20/1,713,293,139.30 = 280,552,418.20/x
  3. Step 3: Cross multiply
    1,142,195,426.20x = 1,713,293,139.30 × 280,552,418.20
  4. Step 4: Simplify right side
    1,142,195,426.20x = 480,668,533,316,084,416
  5. Step 5: Solve for x
    x = 480,668,533,316,084,416/1,142,195,426.20
  6. Step 6: Final answer
    x = 420,828,627.30

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Half scale
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Double scale
Find fourth proportional to 1,142,195,427.20, 1,713,293,140.80 and 280,552,419.20
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.