Home / 99,651,212.80-149,476,819.20-61,188,006.40

Finding the Fourth Proportional to 99,651,212.80, 149,476,819.20 and 61,188,006.40

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Solution

The fourth proportional to 99,651,212.80, 149,476,819.20 and 61,188,006.40 is: 91,782,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,651,212.80 : 149,476,819.20 = 61,188,006.40 : x
  2. Step 2: Convert to fraction form
    99,651,212.80/149,476,819.20 = 61,188,006.40/x
  3. Step 3: Cross multiply
    99,651,212.80x = 149,476,819.20 × 61,188,006.40
  4. Step 4: Simplify right side
    99,651,212.80x = 9,146,188,569,861,242
  5. Step 5: Solve for x
    x = 9,146,188,569,861,242/99,651,212.80
  6. Step 6: Final answer
    x = 91,782,009.60

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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.