Home / 129,534,801.60-194,177,786.40-74,891,294.40

Finding the Fourth Proportional to 129,534,801.60, 194,177,786.40 and 74,891,294.40

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Solution

The fourth proportional to 129,534,801.60, 194,177,786.40 and 74,891,294.40 is: 112,265,009.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,534,801.60 : 194,177,786.40 = 74,891,294.40 : x
  2. Step 2: Convert to fraction form
    129,534,801.60/194,177,786.40 = 74,891,294.40/x
  3. Step 3: Cross multiply
    129,534,801.60x = 194,177,786.40 × 74,891,294.40
  4. Step 4: Simplify right side
    129,534,801.60x = 14,542,225,767,222,718
  5. Step 5: Solve for x
    x = 14,542,225,767,222,718/129,534,801.60
  6. Step 6: Final answer
    x = 112,265,009.77

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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.