Home / 129,545,226.40-194,339,612.40-38,678,000.80

Finding the Fourth Proportional to 129,545,226.40, 194,339,612.40 and 38,678,000.80

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Solution

The fourth proportional to 129,545,226.40, 194,339,612.40 and 38,678,000.80 is: 58,023,501.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,545,226.40 : 194,339,612.40 = 38,678,000.80 : x
  2. Step 2: Convert to fraction form
    129,545,226.40/194,339,612.40 = 38,678,000.80/x
  3. Step 3: Cross multiply
    129,545,226.40x = 194,339,612.40 × 38,678,000.80
  4. Step 4: Simplify right side
    129,545,226.40x = 7,516,667,683,878,890
  5. Step 5: Solve for x
    x = 7,516,667,683,878,890/129,545,226.40
  6. Step 6: Final answer
    x = 58,023,501.85

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1.5x scale

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.