Home / 10,637,615,411.20-15,956,423,116.80-5,127,635,123.20

Finding the Fourth Proportional to 10,637,615,411.20, 15,956,423,116.80 and 5,127,635,123.20

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Solution

The fourth proportional to 10,637,615,411.20, 15,956,423,116.80 and 5,127,635,123.20 is: 7,691,452,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,637,615,411.20 : 15,956,423,116.80 = 5,127,635,123.20 : x
  2. Step 2: Convert to fraction form
    10,637,615,411.20/15,956,423,116.80 = 5,127,635,123.20/x
  3. Step 3: Cross multiply
    10,637,615,411.20x = 15,956,423,116.80 × 5,127,635,123.20
  4. Step 4: Simplify right side
    10,637,615,411.20x = 81,818,715,614,344,085,504
  5. Step 5: Solve for x
    x = 81,818,715,614,344,085,504/10,637,615,411.20
  6. Step 6: Final answer
    x = 7,691,452,684.80

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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.