Home / 1,290,281,612.80-1,935,422,419.20-472,121,996.80

Finding the Fourth Proportional to 1,290,281,612.80, 1,935,422,419.20 and 472,121,996.80

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Solution

The fourth proportional to 1,290,281,612.80, 1,935,422,419.20 and 472,121,996.80 is: 708,182,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,281,612.80 : 1,935,422,419.20 = 472,121,996.80 : x
  2. Step 2: Convert to fraction form
    1,290,281,612.80/1,935,422,419.20 = 472,121,996.80/x
  3. Step 3: Cross multiply
    1,290,281,612.80x = 1,935,422,419.20 × 472,121,996.80
  4. Step 4: Simplify right side
    1,290,281,612.80x = 913,755,497,204,190,720
  5. Step 5: Solve for x
    x = 913,755,497,204,190,720/1,290,281,612.80
  6. Step 6: Final answer
    x = 708,182,995.20

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Half scale
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Double scale
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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.