Home / 12,696,818.19-17,522,689.71-7,191,172.49

Finding the Fourth Proportional to 12,696,818.19, 17,522,689.71 and 7,191,172.49

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Solution

The fourth proportional to 12,696,818.19, 17,522,689.71 and 7,191,172.49 is: 9,924,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696,818.19 : 17,522,689.71 = 7,191,172.49 : x
  2. Step 2: Convert to fraction form
    12,696,818.19/17,522,689.71 = 7,191,172.49/x
  3. Step 3: Cross multiply
    12,696,818.19x = 17,522,689.71 × 7,191,172.49
  4. Step 4: Simplify right side
    12,696,818.19x = 126,008,684,112,489.95
  5. Step 5: Solve for x
    x = 126,008,684,112,489.95/12,696,818.19
  6. Step 6: Final answer
    x = 9,924,430.06

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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.