Home / 72,338,706.45-99,825,111.99-41,398,211.43

Finding the Fourth Proportional to 72,338,706.45, 99,825,111.99 and 41,398,211.43

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Solution

The fourth proportional to 72,338,706.45, 99,825,111.99 and 41,398,211.43 is: 57,128,213.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,338,706.45 : 99,825,111.99 = 41,398,211.43 : x
  2. Step 2: Convert to fraction form
    72,338,706.45/99,825,111.99 = 41,398,211.43/x
  3. Step 3: Cross multiply
    72,338,706.45x = 99,825,111.99 × 41,398,211.43
  4. Step 4: Simplify right side
    72,338,706.45x = 4,132,581,092,185,448
  5. Step 5: Solve for x
    x = 4,132,581,092,185,448/72,338,706.45
  6. Step 6: Final answer
    x = 57,128,213.86

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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.