Home / 99,862,685.34-137,814,761.80-55,809,682.88

Finding the Fourth Proportional to 99,862,685.34, 137,814,761.80 and 55,809,682.88

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Solution

The fourth proportional to 99,862,685.34, 137,814,761.80 and 55,809,682.88 is: 77,019,740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,862,685.34 : 137,814,761.80 = 55,809,682.88 : x
  2. Step 2: Convert to fraction form
    99,862,685.34/137,814,761.80 = 55,809,682.88/x
  3. Step 3: Cross multiply
    99,862,685.34x = 137,814,761.80 × 55,809,682.88
  4. Step 4: Simplify right side
    99,862,685.34x = 7,691,398,152,240,739
  5. Step 5: Solve for x
    x = 7,691,398,152,240,739/99,862,685.34
  6. Step 6: Final answer
    x = 77,019,740.92

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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.