Home / 72,577,905.15-108,866,857.73-66,783,229.95

Finding the Fourth Proportional to 72,577,905.15, 108,866,857.73 and 66,783,229.95

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Solution

The fourth proportional to 72,577,905.15, 108,866,857.73 and 66,783,229.95 is: 100,174,844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,577,905.15 : 108,866,857.73 = 66,783,229.95 : x
  2. Step 2: Convert to fraction form
    72,577,905.15/108,866,857.73 = 66,783,229.95/x
  3. Step 3: Cross multiply
    72,577,905.15x = 108,866,857.73 × 66,783,229.95
  4. Step 4: Simplify right side
    72,577,905.15x = 7,270,480,393,382,609
  5. Step 5: Solve for x
    x = 7,270,480,393,382,609/72,577,905.15
  6. Step 6: Final answer
    x = 100,174,844.93

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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.