Home / 20,537,127.36-28,340,157.24-11,242,915.20

Finding the Fourth Proportional to 20,537,127.36, 28,340,157.24 and 11,242,915.20

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Solution

The fourth proportional to 20,537,127.36, 28,340,157.24 and 11,242,915.20 is: 15,514,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537,127.36 : 28,340,157.24 = 11,242,915.20 : x
  2. Step 2: Convert to fraction form
    20,537,127.36/28,340,157.24 = 11,242,915.20/x
  3. Step 3: Cross multiply
    20,537,127.36x = 28,340,157.24 × 11,242,915.20
  4. Step 4: Simplify right side
    20,537,127.36x = 318,625,984,603,986
  5. Step 5: Solve for x
    x = 318,625,984,603,986/20,537,127.36
  6. Step 6: Final answer
    x = 15,514,632.55

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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.