Home / 399,104,562.60-598,656,843.90-289,415,140.20

Finding the Fourth Proportional to 399,104,562.60, 598,656,843.90 and 289,415,140.20

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Solution

The fourth proportional to 399,104,562.60, 598,656,843.90 and 289,415,140.20 is: 434,122,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,104,562.60 : 598,656,843.90 = 289,415,140.20 : x
  2. Step 2: Convert to fraction form
    399,104,562.60/598,656,843.90 = 289,415,140.20/x
  3. Step 3: Cross multiply
    399,104,562.60x = 598,656,843.90 × 289,415,140.20
  4. Step 4: Simplify right side
    399,104,562.60x = 173,260,354,409,008,000
  5. Step 5: Solve for x
    x = 173,260,354,409,008,000/399,104,562.60
  6. Step 6: Final answer
    x = 434,122,710.30

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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.