Home / 101,247,809.49-139,721,326.20-57,209,065.29

Finding the Fourth Proportional to 101,247,809.49, 139,721,326.20 and 57,209,065.29

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Solution

The fourth proportional to 101,247,809.49, 139,721,326.20 and 57,209,065.29 is: 78,948,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,247,809.49 : 139,721,326.20 = 57,209,065.29 : x
  2. Step 2: Convert to fraction form
    101,247,809.49/139,721,326.20 = 57,209,065.29/x
  3. Step 3: Cross multiply
    101,247,809.49x = 139,721,326.20 × 57,209,065.29
  4. Step 4: Simplify right side
    101,247,809.49x = 7,993,326,472,981,187
  5. Step 5: Solve for x
    x = 7,993,326,472,981,187/101,247,809.49
  6. Step 6: Final answer
    x = 78,948,142.32

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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.