Home / 21,167,756.30-31,751,634.45-21,018,457.10

Finding the Fourth Proportional to 21,167,756.30, 31,751,634.45 and 21,018,457.10

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Solution

The fourth proportional to 21,167,756.30, 31,751,634.45 and 21,018,457.10 is: 31,527,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,756.30 : 31,751,634.45 = 21,018,457.10 : x
  2. Step 2: Convert to fraction form
    21,167,756.30/31,751,634.45 = 21,018,457.10/x
  3. Step 3: Cross multiply
    21,167,756.30x = 31,751,634.45 × 21,018,457.10
  4. Step 4: Simplify right side
    21,167,756.30x = 667,370,366,542,207.12
  5. Step 5: Solve for x
    x = 667,370,366,542,207.12/21,167,756.30
  6. Step 6: Final answer
    x = 31,527,685.65

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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.