Home / 18,157,170-27,228,668.76-7,925,159.28

Finding the Fourth Proportional to 18,157,170, 27,228,668.76 and 7,925,159.28

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Solution

The fourth proportional to 18,157,170, 27,228,668.76 and 7,925,159.28 is: 11,884,645.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157,170 : 27,228,668.76 = 7,925,159.28 : x
  2. Step 2: Convert to fraction form
    18,157,170/27,228,668.76 = 7,925,159.28/x
  3. Step 3: Cross multiply
    18,157,170x = 27,228,668.76 × 7,925,159.28
  4. Step 4: Simplify right side
    18,157,170x = 215,791,536,905,360.12
  5. Step 5: Solve for x
    x = 215,791,536,905,360.12/18,157,170
  6. Step 6: Final answer
    x = 11,884,645.95

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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.