Home / 120,231,124.27-165,919,273.09-65,226,980.77

Finding the Fourth Proportional to 120,231,124.27, 165,919,273.09 and 65,226,980.77

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Solution

The fourth proportional to 120,231,124.27, 165,919,273.09 and 65,226,980.77 is: 90,013,407.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,231,124.27 : 165,919,273.09 = 65,226,980.77 : x
  2. Step 2: Convert to fraction form
    120,231,124.27/165,919,273.09 = 65,226,980.77/x
  3. Step 3: Cross multiply
    120,231,124.27x = 165,919,273.09 × 65,226,980.77
  4. Step 4: Simplify right side
    120,231,124.27x = 10,822,413,234,635,942
  5. Step 5: Solve for x
    x = 10,822,413,234,635,942/120,231,124.27
  6. Step 6: Final answer
    x = 90,013,407.93

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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.