Home / 142,321,072.32-213,498,882.72-40,085,110.08

Finding the Fourth Proportional to 142,321,072.32, 213,498,882.72 and 40,085,110.08

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Solution

The fourth proportional to 142,321,072.32, 213,498,882.72 and 40,085,110.08 is: 60,132,530.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,321,072.32 : 213,498,882.72 = 40,085,110.08 : x
  2. Step 2: Convert to fraction form
    142,321,072.32/213,498,882.72 = 40,085,110.08/x
  3. Step 3: Cross multiply
    142,321,072.32x = 213,498,882.72 × 40,085,110.08
  4. Step 4: Simplify right side
    142,321,072.32x = 8,558,126,215,788,209
  5. Step 5: Solve for x
    x = 8,558,126,215,788,209/142,321,072.32
  6. Step 6: Final answer
    x = 60,132,530.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.