Home / 91,746,288.80-137,619,433.20-81,837,245.60

Finding the Fourth Proportional to 91,746,288.80, 137,619,433.20 and 81,837,245.60

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Solution

The fourth proportional to 91,746,288.80, 137,619,433.20 and 81,837,245.60 is: 122,755,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,746,288.80 : 137,619,433.20 = 81,837,245.60 : x
  2. Step 2: Convert to fraction form
    91,746,288.80/137,619,433.20 = 81,837,245.60/x
  3. Step 3: Cross multiply
    91,746,288.80x = 137,619,433.20 × 81,837,245.60
  4. Step 4: Simplify right side
    91,746,288.80x = 11,262,395,354,121,192
  5. Step 5: Solve for x
    x = 11,262,395,354,121,192/91,746,288.80
  6. Step 6: Final answer
    x = 122,755,868.40

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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.