Home / 99,747,339.05-137,575,578.29-85,832,013.31

Finding the Fourth Proportional to 99,747,339.05, 137,575,578.29 and 85,832,013.31

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Solution

The fourth proportional to 99,747,339.05, 137,575,578.29 and 85,832,013.31 is: 118,382,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,747,339.05 : 137,575,578.29 = 85,832,013.31 : x
  2. Step 2: Convert to fraction form
    99,747,339.05/137,575,578.29 = 85,832,013.31/x
  3. Step 3: Cross multiply
    99,747,339.05x = 137,575,578.29 × 85,832,013.31
  4. Step 4: Simplify right side
    99,747,339.05x = 11,808,388,866,145,128
  5. Step 5: Solve for x
    x = 11,808,388,866,145,128/99,747,339.05
  6. Step 6: Final answer
    x = 118,382,996.26

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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.