Home / 12,480,385,809.60-18,720,578,714.40-5,124,675,499.20

Finding the Fourth Proportional to 12,480,385,809.60, 18,720,578,714.40 and 5,124,675,499.20

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Solution

The fourth proportional to 12,480,385,809.60, 18,720,578,714.40 and 5,124,675,499.20 is: 7,687,013,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,385,809.60 : 18,720,578,714.40 = 5,124,675,499.20 : x
  2. Step 2: Convert to fraction form
    12,480,385,809.60/18,720,578,714.40 = 5,124,675,499.20/x
  3. Step 3: Cross multiply
    12,480,385,809.60x = 18,720,578,714.40 × 5,124,675,499.20
  4. Step 4: Simplify right side
    12,480,385,809.60x = 95,936,891,068,530,720,768
  5. Step 5: Solve for x
    x = 95,936,891,068,530,720,768/12,480,385,809.60
  6. Step 6: Final answer
    x = 7,687,013,248.80

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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.