Home / 215,963,860.80-323,974,207.20-79,744,929.60

Finding the Fourth Proportional to 215,963,860.80, 323,974,207.20 and 79,744,929.60

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Solution

The fourth proportional to 215,963,860.80, 323,974,207.20 and 79,744,929.60 is: 119,627,887.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,963,860.80 : 323,974,207.20 = 79,744,929.60 : x
  2. Step 2: Convert to fraction form
    215,963,860.80/323,974,207.20 = 79,744,929.60/x
  3. Step 3: Cross multiply
    215,963,860.80x = 323,974,207.20 × 79,744,929.60
  4. Step 4: Simplify right side
    215,963,860.80x = 25,835,300,345,379,812
  5. Step 5: Solve for x
    x = 25,835,300,345,379,812/215,963,860.80
  6. Step 6: Final answer
    x = 119,627,887.04

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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.