Home / 15,328,002-21,153,153.41-8,359,059.78

Finding the Fourth Proportional to 15,328,002, 21,153,153.41 and 8,359,059.78

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Solution

The fourth proportional to 15,328,002, 21,153,153.41 and 8,359,059.78 is: 11,535,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328,002 : 21,153,153.41 = 8,359,059.78 : x
  2. Step 2: Convert to fraction form
    15,328,002/21,153,153.41 = 8,359,059.78/x
  3. Step 3: Cross multiply
    15,328,002x = 21,153,153.41 × 8,359,059.78
  4. Step 4: Simplify right side
    15,328,002x = 176,820,473,847,905.56
  5. Step 5: Solve for x
    x = 176,820,473,847,905.56/15,328,002
  6. Step 6: Final answer
    x = 11,535,780.97

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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.