Home / 129,296,886.66-194,013,429.97-74,747,789.51

Finding the Fourth Proportional to 129,296,886.66, 194,013,429.97 and 74,747,789.51

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Solution

The fourth proportional to 129,296,886.66, 194,013,429.97 and 74,747,789.51 is: 112,161,053.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,296,886.66 : 194,013,429.97 = 74,747,789.51 : x
  2. Step 2: Convert to fraction form
    129,296,886.66/194,013,429.97 = 74,747,789.51/x
  3. Step 3: Cross multiply
    129,296,886.66x = 194,013,429.97 × 74,747,789.51
  4. Step 4: Simplify right side
    129,296,886.66x = 14,502,075,025,510,686
  5. Step 5: Solve for x
    x = 14,502,075,025,510,686/129,296,886.66
  6. Step 6: Final answer
    x = 112,161,053.53

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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.