Home / 402,551,320.20-603,614,403.90-172,260,220.20

Finding the Fourth Proportional to 402,551,320.20, 603,614,403.90 and 172,260,220.20

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Solution

The fourth proportional to 402,551,320.20, 603,614,403.90 and 172,260,220.20 is: 258,299,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,551,320.20 : 603,614,403.90 = 172,260,220.20 : x
  2. Step 2: Convert to fraction form
    402,551,320.20/603,614,403.90 = 172,260,220.20/x
  3. Step 3: Cross multiply
    402,551,320.20x = 603,614,403.90 × 172,260,220.20
  4. Step 4: Simplify right side
    402,551,320.20x = 103,978,750,131,705,728
  5. Step 5: Solve for x
    x = 103,978,750,131,705,728/402,551,320.20
  6. Step 6: Final answer
    x = 258,299,364.36

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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.