Home / 138,675,000-191,377,515.62-76,795,338.57

Finding the Fourth Proportional to 138,675,000, 191,377,515.62 and 76,795,338.57

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Solution

The fourth proportional to 138,675,000, 191,377,515.62 and 76,795,338.57 is: 105,980,898.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,675,000 : 191,377,515.62 = 76,795,338.57 : x
  2. Step 2: Convert to fraction form
    138,675,000/191,377,515.62 = 76,795,338.57/x
  3. Step 3: Cross multiply
    138,675,000x = 191,377,515.62 × 76,795,338.57
  4. Step 4: Simplify right side
    138,675,000x = 14,696,901,106,339,386
  5. Step 5: Solve for x
    x = 14,696,901,106,339,386/138,675,000
  6. Step 6: Final answer
    x = 105,980,898.55

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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.