Home / 478,491,077.80-660,318,275.10-258,474,503.80

Finding the Fourth Proportional to 478,491,077.80, 660,318,275.10 and 258,474,503.80

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Solution

The fourth proportional to 478,491,077.80, 660,318,275.10 and 258,474,503.80 is: 356,695,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,491,077.80 : 660,318,275.10 = 258,474,503.80 : x
  2. Step 2: Convert to fraction form
    478,491,077.80/660,318,275.10 = 258,474,503.80/x
  3. Step 3: Cross multiply
    478,491,077.80x = 660,318,275.10 × 258,474,503.80
  4. Step 4: Simplify right side
    478,491,077.80x = 170,675,438,506,544,416
  5. Step 5: Solve for x
    x = 170,675,438,506,544,416/478,491,077.80
  6. Step 6: Final answer
    x = 356,695,132.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.