Home / 18,718,648.22-28,059,371.89-13,026,915.12

Finding the Fourth Proportional to 18,718,648.22, 28,059,371.89 and 13,026,915.12

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Solution

The fourth proportional to 18,718,648.22, 28,059,371.89 and 13,026,915.12 is: 19,527,428.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718,648.22 : 28,059,371.89 = 13,026,915.12 : x
  2. Step 2: Convert to fraction form
    18,718,648.22/28,059,371.89 = 13,026,915.12/x
  3. Step 3: Cross multiply
    18,718,648.22x = 28,059,371.89 × 13,026,915.12
  4. Step 4: Simplify right side
    18,718,648.22x = 365,527,055,931,543.94
  5. Step 5: Solve for x
    x = 365,527,055,931,543.94/18,718,648.22
  6. Step 6: Final answer
    x = 19,527,428.03

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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.