Home / 12,772,974.42-19,149,117.12-8,719,253.28

Finding the Fourth Proportional to 12,772,974.42, 19,149,117.12 and 8,719,253.28

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Solution

The fourth proportional to 12,772,974.42, 19,149,117.12 and 8,719,253.28 is: 13,071,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772,974.42 : 19,149,117.12 = 8,719,253.28 : x
  2. Step 2: Convert to fraction form
    12,772,974.42/19,149,117.12 = 8,719,253.28/x
  3. Step 3: Cross multiply
    12,772,974.42x = 19,149,117.12 × 8,719,253.28
  4. Step 4: Simplify right side
    12,772,974.42x = 166,966,002,257,664.16
  5. Step 5: Solve for x
    x = 166,966,002,257,664.16/12,772,974.42
  6. Step 6: Final answer
    x = 13,071,818.42

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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.