Home / 297,216,080.80-445,824,121.20-78,866,000.80

Finding the Fourth Proportional to 297,216,080.80, 445,824,121.20 and 78,866,000.80

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Solution

The fourth proportional to 297,216,080.80, 445,824,121.20 and 78,866,000.80 is: 118,299,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,216,080.80 : 445,824,121.20 = 78,866,000.80 : x
  2. Step 2: Convert to fraction form
    297,216,080.80/445,824,121.20 = 78,866,000.80/x
  3. Step 3: Cross multiply
    297,216,080.80x = 445,824,121.20 × 78,866,000.80
  4. Step 4: Simplify right side
    297,216,080.80x = 35,160,365,499,218,496
  5. Step 5: Solve for x
    x = 35,160,365,499,218,496/297,216,080.80
  6. Step 6: Final answer
    x = 118,299,001.20

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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.