Home / 13,564,382.47-18,714,218.25-8,405,861.83

Finding the Fourth Proportional to 13,564,382.47, 18,714,218.25 and 8,405,861.83

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Solution

The fourth proportional to 13,564,382.47, 18,714,218.25 and 8,405,861.83 is: 11,597,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564,382.47 : 18,714,218.25 = 8,405,861.83 : x
  2. Step 2: Convert to fraction form
    13,564,382.47/18,714,218.25 = 8,405,861.83/x
  3. Step 3: Cross multiply
    13,564,382.47x = 18,714,218.25 × 8,405,861.83
  4. Step 4: Simplify right side
    13,564,382.47x = 157,309,132,865,964.41
  5. Step 5: Solve for x
    x = 157,309,132,865,964.41/13,564,382.47
  6. Step 6: Final answer
    x = 11,597,220.38

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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.