Home / 56,728,975.20-85,187,941.20-31,188,314.40

Finding the Fourth Proportional to 56,728,975.20, 85,187,941.20 and 31,188,314.40

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Solution

The fourth proportional to 56,728,975.20, 85,187,941.20 and 31,188,314.40 is: 46,834,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,728,975.20 : 85,187,941.20 = 31,188,314.40 : x
  2. Step 2: Convert to fraction form
    56,728,975.20/85,187,941.20 = 31,188,314.40/x
  3. Step 3: Cross multiply
    56,728,975.20x = 85,187,941.20 × 31,188,314.40
  4. Step 4: Simplify right side
    56,728,975.20x = 2,656,868,293,234,313
  5. Step 5: Solve for x
    x = 2,656,868,293,234,313/56,728,975.20
  6. Step 6: Final answer
    x = 46,834,413.70

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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.