Home / 99,686,322.81-137,561,385.92-55,629,863.91

Finding the Fourth Proportional to 99,686,322.81, 137,561,385.92 and 55,629,863.91

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Solution

The fourth proportional to 99,686,322.81, 137,561,385.92 and 55,629,863.91 is: 76,766,009.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,686,322.81 : 137,561,385.92 = 55,629,863.91 : x
  2. Step 2: Convert to fraction form
    99,686,322.81/137,561,385.92 = 55,629,863.91/x
  3. Step 3: Cross multiply
    99,686,322.81x = 137,561,385.92 × 55,629,863.91
  4. Step 4: Simplify right side
    99,686,322.81x = 7,652,521,177,722,440
  5. Step 5: Solve for x
    x = 7,652,521,177,722,440/99,686,322.81
  6. Step 6: Final answer
    x = 76,766,009.24

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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.