Home / 151,768,907.20-209,441,142.48-82,154,072.80

Finding the Fourth Proportional to 151,768,907.20, 209,441,142.48 and 82,154,072.80

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Solution

The fourth proportional to 151,768,907.20, 209,441,142.48 and 82,154,072.80 is: 113,372,647.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,768,907.20 : 209,441,142.48 = 82,154,072.80 : x
  2. Step 2: Convert to fraction form
    151,768,907.20/209,441,142.48 = 82,154,072.80/x
  3. Step 3: Cross multiply
    151,768,907.20x = 209,441,142.48 × 82,154,072.80
  4. Step 4: Simplify right side
    151,768,907.20x = 17,206,442,866,617,092
  5. Step 5: Solve for x
    x = 17,206,442,866,617,092/151,768,907.20
  6. Step 6: Final answer
    x = 113,372,647.82

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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.