Home / 138,675,000.25-191,377,515.96-76,795,338.82

Finding the Fourth Proportional to 138,675,000.25, 191,377,515.96 and 76,795,338.82

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Solution

The fourth proportional to 138,675,000.25, 191,377,515.96 and 76,795,338.82 is: 105,980,898.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,675,000.25 : 191,377,515.96 = 76,795,338.82 : x
  2. Step 2: Convert to fraction form
    138,675,000.25/191,377,515.96 = 76,795,338.82/x
  3. Step 3: Cross multiply
    138,675,000.25x = 191,377,515.96 × 76,795,338.82
  4. Step 4: Simplify right side
    138,675,000.25x = 14,696,901,180,678,156
  5. Step 5: Solve for x
    x = 14,696,901,180,678,156/138,675,000.25
  6. Step 6: Final answer
    x = 105,980,898.89

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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.