Home / 13,762,209.16-18,989,613.30-7,650,480.52

Finding the Fourth Proportional to 13,762,209.16, 18,989,613.30 and 7,650,480.52

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Solution

The fourth proportional to 13,762,209.16, 18,989,613.30 and 7,650,480.52 is: 10,556,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762,209.16 : 18,989,613.30 = 7,650,480.52 : x
  2. Step 2: Convert to fraction form
    13,762,209.16/18,989,613.30 = 7,650,480.52/x
  3. Step 3: Cross multiply
    13,762,209.16x = 18,989,613.30 × 7,650,480.52
  4. Step 4: Simplify right side
    13,762,209.16x = 145,279,666,633,982.91
  5. Step 5: Solve for x
    x = 145,279,666,633,982.91/13,762,209.16
  6. Step 6: Final answer
    x = 10,556,420.48

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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.