Home / 10,488,465,019.20-15,732,697,528.80-8,039,584,891.20

Finding the Fourth Proportional to 10,488,465,019.20, 15,732,697,528.80 and 8,039,584,891.20

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Solution

The fourth proportional to 10,488,465,019.20, 15,732,697,528.80 and 8,039,584,891.20 is: 12,059,377,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488,465,019.20 : 15,732,697,528.80 = 8,039,584,891.20 : x
  2. Step 2: Convert to fraction form
    10,488,465,019.20/15,732,697,528.80 = 8,039,584,891.20/x
  3. Step 3: Cross multiply
    10,488,465,019.20x = 15,732,697,528.80 × 8,039,584,891.20
  4. Step 4: Simplify right side
    10,488,465,019.20x = 126,484,357,350,360,055,808
  5. Step 5: Solve for x
    x = 126,484,357,350,360,055,808/10,488,465,019.20
  6. Step 6: Final answer
    x = 12,059,377,336.80

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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.