Home / 91,609,911.70-137,414,867.55-77,261,004.70

Finding the Fourth Proportional to 91,609,911.70, 137,414,867.55 and 77,261,004.70

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Solution

The fourth proportional to 91,609,911.70, 137,414,867.55 and 77,261,004.70 is: 115,891,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609,911.70 : 137,414,867.55 = 77,261,004.70 : x
  2. Step 2: Convert to fraction form
    91,609,911.70/137,414,867.55 = 77,261,004.70/x
  3. Step 3: Cross multiply
    91,609,911.70x = 137,414,867.55 × 77,261,004.70
  4. Step 4: Simplify right side
    91,609,911.70x = 10,616,810,727,630,428
  5. Step 5: Solve for x
    x = 10,616,810,727,630,428/91,609,911.70
  6. Step 6: Final answer
    x = 115,891,507.05

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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.