Home / 13,663,640.76-18,840,566.70-11,175,113.40

Finding the Fourth Proportional to 13,663,640.76, 18,840,566.70 and 11,175,113.40

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Solution

The fourth proportional to 13,663,640.76, 18,840,566.70 and 11,175,113.40 is: 15,409,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663,640.76 : 18,840,566.70 = 11,175,113.40 : x
  2. Step 2: Convert to fraction form
    13,663,640.76/18,840,566.70 = 11,175,113.40/x
  3. Step 3: Cross multiply
    13,663,640.76x = 18,840,566.70 × 11,175,113.40
  4. Step 4: Simplify right side
    13,663,640.76x = 210,545,469,392,763.78
  5. Step 5: Solve for x
    x = 210,545,469,392,763.78/13,663,640.76
  6. Step 6: Final answer
    x = 15,409,177.77

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1.5x scale

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.