Home / 189,970,513.60-284,955,770.40-129,504,337.60

Finding the Fourth Proportional to 189,970,513.60, 284,955,770.40 and 129,504,337.60

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Solution

The fourth proportional to 189,970,513.60, 284,955,770.40 and 129,504,337.60 is: 194,256,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,970,513.60 : 284,955,770.40 = 129,504,337.60 : x
  2. Step 2: Convert to fraction form
    189,970,513.60/284,955,770.40 = 129,504,337.60/x
  3. Step 3: Cross multiply
    189,970,513.60x = 284,955,770.40 × 129,504,337.60
  4. Step 4: Simplify right side
    189,970,513.60x = 36,903,008,290,949,680
  5. Step 5: Solve for x
    x = 36,903,008,290,949,680/189,970,513.60
  6. Step 6: Final answer
    x = 194,256,506.40

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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.