Home / 78,378,395.31-108,162,974.16-43,098,061.23

Finding the Fourth Proportional to 78,378,395.31, 108,162,974.16 and 43,098,061.23

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Solution

The fourth proportional to 78,378,395.31, 108,162,974.16 and 43,098,061.23 is: 59,475,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,378,395.31 : 108,162,974.16 = 43,098,061.23 : x
  2. Step 2: Convert to fraction form
    78,378,395.31/108,162,974.16 = 43,098,061.23/x
  3. Step 3: Cross multiply
    78,378,395.31x = 108,162,974.16 × 43,098,061.23
  4. Step 4: Simplify right side
    78,378,395.31x = 4,661,614,483,166,587
  5. Step 5: Solve for x
    x = 4,661,614,483,166,587/78,378,395.31
  6. Step 6: Final answer
    x = 59,475,758.14

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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.