Home / 412,947,492.30-619,421,238.45-238,369,123.80

Finding the Fourth Proportional to 412,947,492.30, 619,421,238.45 and 238,369,123.80

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Solution

The fourth proportional to 412,947,492.30, 619,421,238.45 and 238,369,123.80 is: 357,553,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,947,492.30 : 619,421,238.45 = 238,369,123.80 : x
  2. Step 2: Convert to fraction form
    412,947,492.30/619,421,238.45 = 238,369,123.80/x
  3. Step 3: Cross multiply
    412,947,492.30x = 619,421,238.45 × 238,369,123.80
  4. Step 4: Simplify right side
    412,947,492.30x = 147,650,897,872,437,376
  5. Step 5: Solve for x
    x = 147,650,897,872,437,376/412,947,492.30
  6. Step 6: Final answer
    x = 357,553,685.70

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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.