Home / 318,731,123.10-478,096,684.65-291,521,343.90

Finding the Fourth Proportional to 318,731,123.10, 478,096,684.65 and 291,521,343.90

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Solution

The fourth proportional to 318,731,123.10, 478,096,684.65 and 291,521,343.90 is: 437,282,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,731,123.10 : 478,096,684.65 = 291,521,343.90 : x
  2. Step 2: Convert to fraction form
    318,731,123.10/478,096,684.65 = 291,521,343.90/x
  3. Step 3: Cross multiply
    318,731,123.10x = 478,096,684.65 × 291,521,343.90
  4. Step 4: Simplify right side
    318,731,123.10x = 139,375,388,023,302,480
  5. Step 5: Solve for x
    x = 139,375,388,023,302,480/318,731,123.10
  6. Step 6: Final answer
    x = 437,282,015.85

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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.