Home / 12,791,536.56-17,652,366.72-6,990,407.28

Finding the Fourth Proportional to 12,791,536.56, 17,652,366.72 and 6,990,407.28

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Solution

The fourth proportional to 12,791,536.56, 17,652,366.72 and 6,990,407.28 is: 9,646,787.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,536.56 : 17,652,366.72 = 6,990,407.28 : x
  2. Step 2: Convert to fraction form
    12,791,536.56/17,652,366.72 = 6,990,407.28/x
  3. Step 3: Cross multiply
    12,791,536.56x = 17,652,366.72 × 6,990,407.28
  4. Step 4: Simplify right side
    12,791,536.56x = 123,397,232,828,717.72
  5. Step 5: Solve for x
    x = 123,397,232,828,717.72/12,791,536.56
  6. Step 6: Final answer
    x = 9,646,787.33

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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.