Home / 491,734,545.80-678,632,356.26-280,050,327.08

Finding the Fourth Proportional to 491,734,545.80, 678,632,356.26 and 280,050,327.08

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Solution

The fourth proportional to 491,734,545.80, 678,632,356.26 and 280,050,327.08 is: 386,491,481.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,734,545.80 : 678,632,356.26 = 280,050,327.08 : x
  2. Step 2: Convert to fraction form
    491,734,545.80/678,632,356.26 = 280,050,327.08/x
  3. Step 3: Cross multiply
    491,734,545.80x = 678,632,356.26 × 280,050,327.08
  4. Step 4: Simplify right side
    491,734,545.80x = 190,051,213,337,684,064
  5. Step 5: Solve for x
    x = 190,051,213,337,684,064/491,734,545.80
  6. Step 6: Final answer
    x = 386,491,481.96

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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.