Home / 66,429,331.80-99,643,997.70-18,560,275.80

Finding the Fourth Proportional to 66,429,331.80, 99,643,997.70 and 18,560,275.80

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Solution

The fourth proportional to 66,429,331.80, 99,643,997.70 and 18,560,275.80 is: 27,840,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,331.80 : 99,643,997.70 = 18,560,275.80 : x
  2. Step 2: Convert to fraction form
    66,429,331.80/99,643,997.70 = 18,560,275.80/x
  3. Step 3: Cross multiply
    66,429,331.80x = 99,643,997.70 × 18,560,275.80
  4. Step 4: Simplify right side
    66,429,331.80x = 1,849,420,079,126,565.75
  5. Step 5: Solve for x
    x = 1,849,420,079,126,565.75/66,429,331.80
  6. Step 6: Final answer
    x = 27,840,413.70

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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.