Home / 143,892,123.20-215,838,184.80-100,809,972.80

Finding the Fourth Proportional to 143,892,123.20, 215,838,184.80 and 100,809,972.80

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Solution

The fourth proportional to 143,892,123.20, 215,838,184.80 and 100,809,972.80 is: 151,214,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,892,123.20 : 215,838,184.80 = 100,809,972.80 : x
  2. Step 2: Convert to fraction form
    143,892,123.20/215,838,184.80 = 100,809,972.80/x
  3. Step 3: Cross multiply
    143,892,123.20x = 215,838,184.80 × 100,809,972.80
  4. Step 4: Simplify right side
    143,892,123.20x = 21,758,641,538,889,372
  5. Step 5: Solve for x
    x = 21,758,641,538,889,372/143,892,123.20
  6. Step 6: Final answer
    x = 151,214,959.20

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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.