Home / 99,743,834.20-149,296,886.70-71,046,020.20

Finding the Fourth Proportional to 99,743,834.20, 149,296,886.70 and 71,046,020.20

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Solution

The fourth proportional to 99,743,834.20, 149,296,886.70 and 71,046,020.20 is: 106,341,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,743,834.20 : 149,296,886.70 = 71,046,020.20 : x
  2. Step 2: Convert to fraction form
    99,743,834.20/149,296,886.70 = 71,046,020.20/x
  3. Step 3: Cross multiply
    99,743,834.20x = 149,296,886.70 × 71,046,020.20
  4. Step 4: Simplify right side
    99,743,834.20x = 10,606,949,628,285,310
  5. Step 5: Solve for x
    x = 10,606,949,628,285,310/99,743,834.20
  6. Step 6: Final answer
    x = 106,341,907.88

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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.