Home / 129,337,736.80-194,006,605.20-121,684,986.40

Finding the Fourth Proportional to 129,337,736.80, 194,006,605.20 and 121,684,986.40

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Solution

The fourth proportional to 129,337,736.80, 194,006,605.20 and 121,684,986.40 is: 182,527,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,337,736.80 : 194,006,605.20 = 121,684,986.40 : x
  2. Step 2: Convert to fraction form
    129,337,736.80/194,006,605.20 = 121,684,986.40/x
  3. Step 3: Cross multiply
    129,337,736.80x = 194,006,605.20 × 121,684,986.40
  4. Step 4: Simplify right side
    129,337,736.80x = 23,607,691,115,272,168
  5. Step 5: Solve for x
    x = 23,607,691,115,272,168/129,337,736.80
  6. Step 6: Final answer
    x = 182,527,479.60

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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.