Home / 18,707,718.30-28,061,577.45-11,495,867.10

Finding the Fourth Proportional to 18,707,718.30, 28,061,577.45 and 11,495,867.10

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Solution

The fourth proportional to 18,707,718.30, 28,061,577.45 and 11,495,867.10 is: 17,243,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707,718.30 : 28,061,577.45 = 11,495,867.10 : x
  2. Step 2: Convert to fraction form
    18,707,718.30/28,061,577.45 = 11,495,867.10/x
  3. Step 3: Cross multiply
    18,707,718.30x = 28,061,577.45 × 11,495,867.10
  4. Step 4: Simplify right side
    18,707,718.30x = 322,592,164,981,556.88
  5. Step 5: Solve for x
    x = 322,592,164,981,556.88/18,707,718.30
  6. Step 6: Final answer
    x = 17,243,800.65

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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.