Home / 129,251,190.64-193,740,686.52-42,966,439.60

Finding the Fourth Proportional to 129,251,190.64, 193,740,686.52 and 42,966,439.60

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Solution

The fourth proportional to 129,251,190.64, 193,740,686.52 and 42,966,439.60 is: 64,404,416.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,251,190.64 : 193,740,686.52 = 42,966,439.60 : x
  2. Step 2: Convert to fraction form
    129,251,190.64/193,740,686.52 = 42,966,439.60/x
  3. Step 3: Cross multiply
    129,251,190.64x = 193,740,686.52 × 42,966,439.60
  4. Step 4: Simplify right side
    129,251,190.64x = 8,324,347,505,424,115
  5. Step 5: Solve for x
    x = 8,324,347,505,424,115/129,251,190.64
  6. Step 6: Final answer
    x = 64,404,416.43

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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.