Home / 20,523,140.20-28,321,935.71-11,230,712.25

Finding the Fourth Proportional to 20,523,140.20, 28,321,935.71 and 11,230,712.25

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Solution

The fourth proportional to 20,523,140.20, 28,321,935.71 and 11,230,712.25 is: 15,498,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523,140.20 : 28,321,935.71 = 11,230,712.25 : x
  2. Step 2: Convert to fraction form
    20,523,140.20/28,321,935.71 = 11,230,712.25/x
  3. Step 3: Cross multiply
    20,523,140.20x = 28,321,935.71 × 11,230,712.25
  4. Step 4: Simplify right side
    20,523,140.20x = 318,075,510,159,648.62
  5. Step 5: Solve for x
    x = 318,075,510,159,648.62/20,523,140.20
  6. Step 6: Final answer
    x = 15,498,384.12

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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.