Home / 381,140,872.20-572,136,461.10-356,163,145.20

Finding the Fourth Proportional to 381,140,872.20, 572,136,461.10 and 356,163,145.20

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Solution

The fourth proportional to 381,140,872.20, 572,136,461.10 and 356,163,145.20 is: 534,642,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,140,872.20 : 572,136,461.10 = 356,163,145.20 : x
  2. Step 2: Convert to fraction form
    381,140,872.20/572,136,461.10 = 356,163,145.20/x
  3. Step 3: Cross multiply
    381,140,872.20x = 572,136,461.10 × 356,163,145.20
  4. Step 4: Simplify right side
    381,140,872.20x = 203,773,921,468,973,440
  5. Step 5: Solve for x
    x = 203,773,921,468,973,440/381,140,872.20
  6. Step 6: Final answer
    x = 534,642,008.59

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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.