Home / 138,452,970.60-191,123,929.89-86,267,789.91

Finding the Fourth Proportional to 138,452,970.60, 191,123,929.89 and 86,267,789.91

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Solution

The fourth proportional to 138,452,970.60, 191,123,929.89 and 86,267,789.91 is: 119,086,206.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,970.60 : 191,123,929.89 = 86,267,789.91 : x
  2. Step 2: Convert to fraction form
    138,452,970.60/191,123,929.89 = 86,267,789.91/x
  3. Step 3: Cross multiply
    138,452,970.60x = 191,123,929.89 × 86,267,789.91
  4. Step 4: Simplify right side
    138,452,970.60x = 16,487,839,030,524,088
  5. Step 5: Solve for x
    x = 16,487,839,030,524,088/138,452,970.60
  6. Step 6: Final answer
    x = 119,086,206.38

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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.