Home / 18,123,810.40-27,185,715.60-17,427,080.80

Finding the Fourth Proportional to 18,123,810.40, 27,185,715.60 and 17,427,080.80

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Solution

The fourth proportional to 18,123,810.40, 27,185,715.60 and 17,427,080.80 is: 26,140,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123,810.40 : 27,185,715.60 = 17,427,080.80 : x
  2. Step 2: Convert to fraction form
    18,123,810.40/27,185,715.60 = 17,427,080.80/x
  3. Step 3: Cross multiply
    18,123,810.40x = 27,185,715.60 × 17,427,080.80
  4. Step 4: Simplify right side
    18,123,810.40x = 473,767,662,367,020.50
  5. Step 5: Solve for x
    x = 473,767,662,367,020.50/18,123,810.40
  6. Step 6: Final answer
    x = 26,140,621.20

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1.5x scale

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.