Home / 78,304,806.16-117,278,290.68-37,392,903.28

Finding the Fourth Proportional to 78,304,806.16, 117,278,290.68 and 37,392,903.28

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Solution

The fourth proportional to 78,304,806.16, 117,278,290.68 and 37,392,903.28 is: 56,003,915.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,304,806.16 : 117,278,290.68 = 37,392,903.28 : x
  2. Step 2: Convert to fraction form
    78,304,806.16/117,278,290.68 = 37,392,903.28/x
  3. Step 3: Cross multiply
    78,304,806.16x = 117,278,290.68 × 37,392,903.28
  4. Step 4: Simplify right side
    78,304,806.16x = 4,385,375,780,240,966
  5. Step 5: Solve for x
    x = 4,385,375,780,240,966/78,304,806.16
  6. Step 6: Final answer
    x = 56,003,915.92

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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.