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Finding the Fourth Proportional to 17,987,956.70, 26,974,061.85 and 7,201,672.70

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Solution

The fourth proportional to 17,987,956.70, 26,974,061.85 and 7,201,672.70 is: 10,799,356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987,956.70 : 26,974,061.85 = 7,201,672.70 : x
  2. Step 2: Convert to fraction form
    17,987,956.70/26,974,061.85 = 7,201,672.70/x
  3. Step 3: Cross multiply
    17,987,956.70x = 26,974,061.85 × 7,201,672.70
  4. Step 4: Simplify right side
    17,987,956.70x = 194,258,364,833,256.50
  5. Step 5: Solve for x
    x = 194,258,364,833,256.50/17,987,956.70
  6. Step 6: Final answer
    x = 10,799,356.93

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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.