Home / 144,884,132.90-199,941,545.86-78,806,168.36

Finding the Fourth Proportional to 144,884,132.90, 199,941,545.86 and 78,806,168.36

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Solution

The fourth proportional to 144,884,132.90, 199,941,545.86 and 78,806,168.36 is: 108,753,296.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,884,132.90 : 199,941,545.86 = 78,806,168.36 : x
  2. Step 2: Convert to fraction form
    144,884,132.90/199,941,545.86 = 78,806,168.36/x
  3. Step 3: Cross multiply
    144,884,132.90x = 199,941,545.86 × 78,806,168.36
  4. Step 4: Simplify right side
    144,884,132.90x = 15,756,627,125,201,822
  5. Step 5: Solve for x
    x = 15,756,627,125,201,822/144,884,132.90
  6. Step 6: Final answer
    x = 108,753,296.93

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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.