Home / 129,579,807.60-194,369,711.40-83,663,305.20

Finding the Fourth Proportional to 129,579,807.60, 194,369,711.40 and 83,663,305.20

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Solution

The fourth proportional to 129,579,807.60, 194,369,711.40 and 83,663,305.20 is: 125,494,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,579,807.60 : 194,369,711.40 = 83,663,305.20 : x
  2. Step 2: Convert to fraction form
    129,579,807.60/194,369,711.40 = 83,663,305.20/x
  3. Step 3: Cross multiply
    129,579,807.60x = 194,369,711.40 × 83,663,305.20
  4. Step 4: Simplify right side
    129,579,807.60x = 16,261,612,486,494,120
  5. Step 5: Solve for x
    x = 16,261,612,486,494,120/129,579,807.60
  6. Step 6: Final answer
    x = 125,494,957.80

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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.