Home / 103,165,815.61-142,369,750.20-56,123,914.13

Finding the Fourth Proportional to 103,165,815.61, 142,369,750.20 and 56,123,914.13

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Solution

The fourth proportional to 103,165,815.61, 142,369,750.20 and 56,123,914.13 is: 77,451,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,165,815.61 : 142,369,750.20 = 56,123,914.13 : x
  2. Step 2: Convert to fraction form
    103,165,815.61/142,369,750.20 = 56,123,914.13/x
  3. Step 3: Cross multiply
    103,165,815.61x = 142,369,750.20 × 56,123,914.13
  4. Step 4: Simplify right side
    103,165,815.61x = 7,990,347,634,966,853
  5. Step 5: Solve for x
    x = 7,990,347,634,966,853/103,165,815.61
  6. Step 6: Final answer
    x = 77,451,504.53

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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.