Home / 91,609,971.45-137,414,957.18-77,261,064.45

Finding the Fourth Proportional to 91,609,971.45, 137,414,957.18 and 77,261,064.45

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Solution

The fourth proportional to 91,609,971.45, 137,414,957.18 and 77,261,064.45 is: 115,891,596.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609,971.45 : 137,414,957.18 = 77,261,064.45 : x
  2. Step 2: Convert to fraction form
    91,609,971.45/137,414,957.18 = 77,261,064.45/x
  3. Step 3: Cross multiply
    91,609,971.45x = 137,414,957.18 × 77,261,064.45
  4. Step 4: Simplify right side
    91,609,971.45x = 10,616,825,862,691,666
  5. Step 5: Solve for x
    x = 10,616,825,862,691,666/91,609,971.45
  6. Step 6: Final answer
    x = 115,891,596.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.