Home / 213,912,276.60-320,868,414.90-99,121,020.60

Finding the Fourth Proportional to 213,912,276.60, 320,868,414.90 and 99,121,020.60

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Solution

The fourth proportional to 213,912,276.60, 320,868,414.90 and 99,121,020.60 is: 148,681,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,912,276.60 : 320,868,414.90 = 99,121,020.60 : x
  2. Step 2: Convert to fraction form
    213,912,276.60/320,868,414.90 = 99,121,020.60/x
  3. Step 3: Cross multiply
    213,912,276.60x = 320,868,414.90 × 99,121,020.60
  4. Step 4: Simplify right side
    213,912,276.60x = 31,804,804,763,192,244
  5. Step 5: Solve for x
    x = 31,804,804,763,192,244/213,912,276.60
  6. Step 6: Final answer
    x = 148,681,530.90

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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.