Home / 12,930,554,018.04-17,840,787,614.87-7,575,235,511.55

Finding the Fourth Proportional to 12,930,554,018.04, 17,840,787,614.87 and 7,575,235,511.55

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Solution

The fourth proportional to 12,930,554,018.04, 17,840,787,614.87 and 7,575,235,511.55 is: 10,451,846,665.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930,554,018.04 : 17,840,787,614.87 = 7,575,235,511.55 : x
  2. Step 2: Convert to fraction form
    12,930,554,018.04/17,840,787,614.87 = 7,575,235,511.55/x
  3. Step 3: Cross multiply
    12,930,554,018.04x = 17,840,787,614.87 × 7,575,235,511.55
  4. Step 4: Simplify right side
    12,930,554,018.04x = 135,148,167,894,146,793,472
  5. Step 5: Solve for x
    x = 135,148,167,894,146,793,472/12,930,554,018.04
  6. Step 6: Final answer
    x = 10,451,846,665.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.