Home / 91,746,289.80-137,619,434.70-81,837,246.60

Finding the Fourth Proportional to 91,746,289.80, 137,619,434.70 and 81,837,246.60

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Solution

The fourth proportional to 91,746,289.80, 137,619,434.70 and 81,837,246.60 is: 122,755,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,746,289.80 : 137,619,434.70 = 81,837,246.60 : x
  2. Step 2: Convert to fraction form
    91,746,289.80/137,619,434.70 = 81,837,246.60/x
  3. Step 3: Cross multiply
    91,746,289.80x = 137,619,434.70 × 81,837,246.60
  4. Step 4: Simplify right side
    91,746,289.80x = 11,262,395,614,496,496
  5. Step 5: Solve for x
    x = 11,262,395,614,496,496/91,746,289.80
  6. Step 6: Final answer
    x = 122,755,869.90

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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.