Home / 21,309,559.68-31,969,073.16-9,943,808.16

Finding the Fourth Proportional to 21,309,559.68, 31,969,073.16 and 9,943,808.16

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Solution

The fourth proportional to 21,309,559.68, 31,969,073.16 and 9,943,808.16 is: 14,917,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309,559.68 : 31,969,073.16 = 9,943,808.16 : x
  2. Step 2: Convert to fraction form
    21,309,559.68/31,969,073.16 = 9,943,808.16/x
  3. Step 3: Cross multiply
    21,309,559.68x = 31,969,073.16 × 9,943,808.16
  4. Step 4: Simplify right side
    21,309,559.68x = 317,894,330,556,045
  5. Step 5: Solve for x
    x = 317,894,330,556,045/21,309,559.68
  6. Step 6: Final answer
    x = 14,917,921.13

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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.