Home / 137,107,084.10-189,207,755.52-78,371,010.38

Finding the Fourth Proportional to 137,107,084.10, 189,207,755.52 and 78,371,010.38

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Solution

The fourth proportional to 137,107,084.10, 189,207,755.52 and 78,371,010.38 is: 108,151,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,107,084.10 : 189,207,755.52 = 78,371,010.38 : x
  2. Step 2: Convert to fraction form
    137,107,084.10/189,207,755.52 = 78,371,010.38/x
  3. Step 3: Cross multiply
    137,107,084.10x = 189,207,755.52 × 78,371,010.38
  4. Step 4: Simplify right side
    137,107,084.10x = 14,828,402,971,834,422
  5. Step 5: Solve for x
    x = 14,828,402,971,834,422/137,107,084.10
  6. Step 6: Final answer
    x = 108,151,982.58

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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.