Home / 91,864,281.80-137,796,422.70-86,195,577.80

Finding the Fourth Proportional to 91,864,281.80, 137,796,422.70 and 86,195,577.80

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Solution

The fourth proportional to 91,864,281.80, 137,796,422.70 and 86,195,577.80 is: 129,293,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,864,281.80 : 137,796,422.70 = 86,195,577.80 : x
  2. Step 2: Convert to fraction form
    91,864,281.80/137,796,422.70 = 86,195,577.80/x
  3. Step 3: Cross multiply
    91,864,281.80x = 137,796,422.70 × 86,195,577.80
  4. Step 4: Simplify right side
    91,864,281.80x = 11,877,442,273,399,534
  5. Step 5: Solve for x
    x = 11,877,442,273,399,534/91,864,281.80
  6. Step 6: Final answer
    x = 129,293,366.70

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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.