Home / 12,370,153.28-18,536,291.70-5,177,771.24

Finding the Fourth Proportional to 12,370,153.28, 18,536,291.70 and 5,177,771.24

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Solution

The fourth proportional to 12,370,153.28, 18,536,291.70 and 5,177,771.24 is: 7,758,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370,153.28 : 18,536,291.70 = 5,177,771.24 : x
  2. Step 2: Convert to fraction form
    12,370,153.28/18,536,291.70 = 5,177,771.24/x
  3. Step 3: Cross multiply
    12,370,153.28x = 18,536,291.70 × 5,177,771.24
  4. Step 4: Simplify right side
    12,370,153.28x = 95,976,678,060,510.70
  5. Step 5: Solve for x
    x = 95,976,678,060,510.70/12,370,153.28
  6. Step 6: Final answer
    x = 7,758,729.90

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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.