Home / 297,216,279.20-445,824,418.80-285,312,000.80

Finding the Fourth Proportional to 297,216,279.20, 445,824,418.80 and 285,312,000.80

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Solution

The fourth proportional to 297,216,279.20, 445,824,418.80 and 285,312,000.80 is: 427,968,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,216,279.20 : 445,824,418.80 = 285,312,000.80 : x
  2. Step 2: Convert to fraction form
    297,216,279.20/445,824,418.80 = 285,312,000.80/x
  3. Step 3: Cross multiply
    297,216,279.20x = 445,824,418.80 × 285,312,000.80
  4. Step 4: Simplify right side
    297,216,279.20x = 127,199,056,933,325,136
  5. Step 5: Solve for x
    x = 127,199,056,933,325,136/297,216,279.20
  6. Step 6: Final answer
    x = 427,968,001.20

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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.