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Finding the Fourth Proportional to 373,249,489.80, 559,874,234.70 and 256,348,216.20

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Solution

The fourth proportional to 373,249,489.80, 559,874,234.70 and 256,348,216.20 is: 384,522,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,249,489.80 : 559,874,234.70 = 256,348,216.20 : x
  2. Step 2: Convert to fraction form
    373,249,489.80/559,874,234.70 = 256,348,216.20/x
  3. Step 3: Cross multiply
    373,249,489.80x = 559,874,234.70 × 256,348,216.20
  4. Step 4: Simplify right side
    373,249,489.80x = 143,522,761,361,685,152
  5. Step 5: Solve for x
    x = 143,522,761,361,685,152/373,249,489.80
  6. Step 6: Final answer
    x = 384,522,324.30

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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.