Home / 20,358,044.80-28,107,630.06-15,640,037.32

Finding the Fourth Proportional to 20,358,044.80, 28,107,630.06 and 15,640,037.32

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Solution

The fourth proportional to 20,358,044.80, 28,107,630.06 and 15,640,037.32 is: 21,593,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358,044.80 : 28,107,630.06 = 15,640,037.32 : x
  2. Step 2: Convert to fraction form
    20,358,044.80/28,107,630.06 = 15,640,037.32/x
  3. Step 3: Cross multiply
    20,358,044.80x = 28,107,630.06 × 15,640,037.32
  4. Step 4: Simplify right side
    20,358,044.80x = 439,604,383,115,153.81
  5. Step 5: Solve for x
    x = 439,604,383,115,153.81/20,358,044.80
  6. Step 6: Final answer
    x = 21,593,644.55

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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.