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Finding the Fourth Proportional to 373,248,540.80, 559,872,811.20 and 256,347,267.20

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Solution

The fourth proportional to 373,248,540.80, 559,872,811.20 and 256,347,267.20 is: 384,520,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,248,540.80 : 559,872,811.20 = 256,347,267.20 : x
  2. Step 2: Convert to fraction form
    373,248,540.80/559,872,811.20 = 256,347,267.20/x
  3. Step 3: Cross multiply
    373,248,540.80x = 559,872,811.20 × 256,347,267.20
  4. Step 4: Simplify right side
    373,248,540.80x = 143,521,865,130,701,552
  5. Step 5: Solve for x
    x = 143,521,865,130,701,552/373,248,540.80
  6. Step 6: Final answer
    x = 384,520,900.80

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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.