Home / 20,338,102.88-28,066,951.12-11,045,671.10

Finding the Fourth Proportional to 20,338,102.88, 28,066,951.12 and 11,045,671.10

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Solution

The fourth proportional to 20,338,102.88, 28,066,951.12 and 11,045,671.10 is: 15,243,226.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338,102.88 : 28,066,951.12 = 11,045,671.10 : x
  2. Step 2: Convert to fraction form
    20,338,102.88/28,066,951.12 = 11,045,671.10/x
  3. Step 3: Cross multiply
    20,338,102.88x = 28,066,951.12 × 11,045,671.10
  4. Step 4: Simplify right side
    20,338,102.88x = 310,018,310,851,296.62
  5. Step 5: Solve for x
    x = 310,018,310,851,296.62/20,338,102.88
  6. Step 6: Final answer
    x = 15,243,226.60

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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.