Home / 15,077,221.16-20,806,549.45-8,201,686.82

Finding the Fourth Proportional to 15,077,221.16, 20,806,549.45 and 8,201,686.82

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Solution

The fourth proportional to 15,077,221.16, 20,806,549.45 and 8,201,686.82 is: 11,318,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077,221.16 : 20,806,549.45 = 8,201,686.82 : x
  2. Step 2: Convert to fraction form
    15,077,221.16/20,806,549.45 = 8,201,686.82/x
  3. Step 3: Cross multiply
    15,077,221.16x = 20,806,549.45 × 8,201,686.82
  4. Step 4: Simplify right side
    15,077,221.16x = 170,648,802,393,743.25
  5. Step 5: Solve for x
    x = 170,648,802,393,743.25/15,077,221.16
  6. Step 6: Final answer
    x = 11,318,319.24

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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.