Home / 138,618,089.52-191,285,385.03-75,882,051.11

Finding the Fourth Proportional to 138,618,089.52, 191,285,385.03 and 75,882,051.11

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Solution

The fourth proportional to 138,618,089.52, 191,285,385.03 and 75,882,051.11 is: 104,713,081.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,618,089.52 : 191,285,385.03 = 75,882,051.11 : x
  2. Step 2: Convert to fraction form
    138,618,089.52/191,285,385.03 = 75,882,051.11/x
  3. Step 3: Cross multiply
    138,618,089.52x = 191,285,385.03 × 75,882,051.11
  4. Step 4: Simplify right side
    138,618,089.52x = 14,515,127,363,920,702
  5. Step 5: Solve for x
    x = 14,515,127,363,920,702/138,618,089.52
  6. Step 6: Final answer
    x = 104,713,081.93

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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.