Home / 21,062,077.80-31,593,116.70-17,660,855.40

Finding the Fourth Proportional to 21,062,077.80, 31,593,116.70 and 17,660,855.40

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Solution

The fourth proportional to 21,062,077.80, 31,593,116.70 and 17,660,855.40 is: 26,491,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,077.80 : 31,593,116.70 = 17,660,855.40 : x
  2. Step 2: Convert to fraction form
    21,062,077.80/31,593,116.70 = 17,660,855.40/x
  3. Step 3: Cross multiply
    21,062,077.80x = 31,593,116.70 × 17,660,855.40
  4. Step 4: Simplify right side
    21,062,077.80x = 557,961,465,674,025.12
  5. Step 5: Solve for x
    x = 557,961,465,674,025.12/21,062,077.80
  6. Step 6: Final answer
    x = 26,491,283.10

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Similar ratio
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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.