Home / 91,864,147.80-137,796,221.70-45,947,645.40

Finding the Fourth Proportional to 91,864,147.80, 137,796,221.70 and 45,947,645.40

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Solution

The fourth proportional to 91,864,147.80, 137,796,221.70 and 45,947,645.40 is: 68,921,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,864,147.80 : 137,796,221.70 = 45,947,645.40 : x
  2. Step 2: Convert to fraction form
    91,864,147.80/137,796,221.70 = 45,947,645.40/x
  3. Step 3: Cross multiply
    91,864,147.80x = 137,796,221.70 × 45,947,645.40
  4. Step 4: Simplify right side
    91,864,147.80x = 6,331,411,932,131,384
  5. Step 5: Solve for x
    x = 6,331,411,932,131,384/91,864,147.80
  6. Step 6: Final answer
    x = 68,921,468.10

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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.