Home / 20,337,498-28,058,918.40-11,515,743.45

Finding the Fourth Proportional to 20,337,498, 28,058,918.40 and 11,515,743.45

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Solution

The fourth proportional to 20,337,498, 28,058,918.40 and 11,515,743.45 is: 15,887,859.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337,498 : 28,058,918.40 = 11,515,743.45 : x
  2. Step 2: Convert to fraction form
    20,337,498/28,058,918.40 = 11,515,743.45/x
  3. Step 3: Cross multiply
    20,337,498x = 28,058,918.40 × 11,515,743.45
  4. Step 4: Simplify right side
    20,337,498x = 323,119,305,778,884.44
  5. Step 5: Solve for x
    x = 323,119,305,778,884.44/20,337,498
  6. Step 6: Final answer
    x = 15,887,859.25

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1.5x scale

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.