Home / 420,037,627.60-628,922,700.60-329,338,363.60

Finding the Fourth Proportional to 420,037,627.60, 628,922,700.60 and 329,338,363.60

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Solution

The fourth proportional to 420,037,627.60, 628,922,700.60 and 329,338,363.60 is: 493,118,614.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,037,627.60 : 628,922,700.60 = 329,338,363.60 : x
  2. Step 2: Convert to fraction form
    420,037,627.60/628,922,700.60 = 329,338,363.60/x
  3. Step 3: Cross multiply
    420,037,627.60x = 628,922,700.60 × 329,338,363.60
  4. Step 4: Simplify right side
    420,037,627.60x = 207,128,373,046,496,768
  5. Step 5: Solve for x
    x = 207,128,373,046,496,768/420,037,627.60
  6. Step 6: Final answer
    x = 493,118,614.71

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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.