Home / 287,226,505.20-430,839,757.80-79,964,515.20

Finding the Fourth Proportional to 287,226,505.20, 430,839,757.80 and 79,964,515.20

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Solution

The fourth proportional to 287,226,505.20, 430,839,757.80 and 79,964,515.20 is: 119,946,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,226,505.20 : 430,839,757.80 = 79,964,515.20 : x
  2. Step 2: Convert to fraction form
    287,226,505.20/430,839,757.80 = 79,964,515.20/x
  3. Step 3: Cross multiply
    287,226,505.20x = 430,839,757.80 × 79,964,515.20
  4. Step 4: Simplify right side
    287,226,505.20x = 34,451,892,361,362,420
  5. Step 5: Solve for x
    x = 34,451,892,361,362,420/287,226,505.20
  6. Step 6: Final answer
    x = 119,946,772.80

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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.