Home / 209,953,824.30-314,930,736.45-129,220,281.90

Finding the Fourth Proportional to 209,953,824.30, 314,930,736.45 and 129,220,281.90

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Solution

The fourth proportional to 209,953,824.30, 314,930,736.45 and 129,220,281.90 is: 193,830,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,824.30 : 314,930,736.45 = 129,220,281.90 : x
  2. Step 2: Convert to fraction form
    209,953,824.30/314,930,736.45 = 129,220,281.90/x
  3. Step 3: Cross multiply
    209,953,824.30x = 314,930,736.45 × 129,220,281.90
  4. Step 4: Simplify right side
    209,953,824.30x = 40,695,438,543,043,608
  5. Step 5: Solve for x
    x = 40,695,438,543,043,608/209,953,824.30
  6. Step 6: Final answer
    x = 193,830,422.85

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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.