Home / 391,624,553.40-587,436,830.10-187,551,209.40

Finding the Fourth Proportional to 391,624,553.40, 587,436,830.10 and 187,551,209.40

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Solution

The fourth proportional to 391,624,553.40, 587,436,830.10 and 187,551,209.40 is: 281,326,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,624,553.40 : 587,436,830.10 = 187,551,209.40 : x
  2. Step 2: Convert to fraction form
    391,624,553.40/587,436,830.10 = 187,551,209.40/x
  3. Step 3: Cross multiply
    391,624,553.40x = 587,436,830.10 × 187,551,209.40
  4. Step 4: Simplify right side
    391,624,553.40x = 110,174,487,931,357,328
  5. Step 5: Solve for x
    x = 110,174,487,931,357,328/391,624,553.40
  6. Step 6: Final answer
    x = 281,326,814.10

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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.