Home / 19,989,942.32-29,986,743.38-5,612,913.23

Finding the Fourth Proportional to 19,989,942.32, 29,986,743.38 and 5,612,913.23

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Solution

The fourth proportional to 19,989,942.32, 29,986,743.38 and 5,612,913.23 is: 8,419,883.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989,942.32 : 29,986,743.38 = 5,612,913.23 : x
  2. Step 2: Convert to fraction form
    19,989,942.32/29,986,743.38 = 5,612,913.23/x
  3. Step 3: Cross multiply
    19,989,942.32x = 29,986,743.38 × 5,612,913.23
  4. Step 4: Simplify right side
    19,989,942.32x = 168,312,988,614,152.38
  5. Step 5: Solve for x
    x = 168,312,988,614,152.38/19,989,942.32
  6. Step 6: Final answer
    x = 8,419,883.66

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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.