Home / 15,317,684.28-21,139,235.82-8,791,261.56

Finding the Fourth Proportional to 15,317,684.28, 21,139,235.82 and 8,791,261.56

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Solution

The fourth proportional to 15,317,684.28, 21,139,235.82 and 8,791,261.56 is: 12,132,418.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317,684.28 : 21,139,235.82 = 8,791,261.56 : x
  2. Step 2: Convert to fraction form
    15,317,684.28/21,139,235.82 = 8,791,261.56/x
  3. Step 3: Cross multiply
    15,317,684.28x = 21,139,235.82 × 8,791,261.56
  4. Step 4: Simplify right side
    15,317,684.28x = 185,840,551,272,141.09
  5. Step 5: Solve for x
    x = 185,840,551,272,141.09/15,317,684.28
  6. Step 6: Final answer
    x = 12,132,418.18

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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.