Home / 18,120,666.12-25,006,523.34-9,971,904.12

Finding the Fourth Proportional to 18,120,666.12, 25,006,523.34 and 9,971,904.12

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Solution

The fourth proportional to 18,120,666.12, 25,006,523.34 and 9,971,904.12 is: 13,761,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,666.12 : 25,006,523.34 = 9,971,904.12 : x
  2. Step 2: Convert to fraction form
    18,120,666.12/25,006,523.34 = 9,971,904.12/x
  3. Step 3: Cross multiply
    18,120,666.12x = 25,006,523.34 × 9,971,904.12
  4. Step 4: Simplify right side
    18,120,666.12x = 249,362,653,121,022.12
  5. Step 5: Solve for x
    x = 249,362,653,121,022.12/18,120,666.12
  6. Step 6: Final answer
    x = 13,761,229.94

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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.