Home / 664,302,635.20-996,453,952.80-457,678,374.40

Finding the Fourth Proportional to 664,302,635.20, 996,453,952.80 and 457,678,374.40

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Solution

The fourth proportional to 664,302,635.20, 996,453,952.80 and 457,678,374.40 is: 686,517,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,635.20 : 996,453,952.80 = 457,678,374.40 : x
  2. Step 2: Convert to fraction form
    664,302,635.20/996,453,952.80 = 457,678,374.40/x
  3. Step 3: Cross multiply
    664,302,635.20x = 996,453,952.80 × 457,678,374.40
  4. Step 4: Simplify right side
    664,302,635.20x = 456,055,425,281,958,272
  5. Step 5: Solve for x
    x = 456,055,425,281,958,272/664,302,635.20
  6. Step 6: Final answer
    x = 686,517,561.60

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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.