Home / 12,997,641.43-17,937,024.78-7,117,523.74

Finding the Fourth Proportional to 12,997,641.43, 17,937,024.78 and 7,117,523.74

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Solution

The fourth proportional to 12,997,641.43, 17,937,024.78 and 7,117,523.74 is: 9,822,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,641.43 : 17,937,024.78 = 7,117,523.74 : x
  2. Step 2: Convert to fraction form
    12,997,641.43/17,937,024.78 = 7,117,523.74/x
  3. Step 3: Cross multiply
    12,997,641.43x = 17,937,024.78 × 7,117,523.74
  4. Step 4: Simplify right side
    12,997,641.43x = 127,667,199,696,618.30
  5. Step 5: Solve for x
    x = 127,667,199,696,618.30/12,997,641.43
  6. Step 6: Final answer
    x = 9,822,335.87

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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.