Home / 10,211,420.80-15,317,131.20-9,361,115.20

Finding the Fourth Proportional to 10,211,420.80, 15,317,131.20 and 9,361,115.20

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Solution

The fourth proportional to 10,211,420.80, 15,317,131.20 and 9,361,115.20 is: 14,041,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211,420.80 : 15,317,131.20 = 9,361,115.20 : x
  2. Step 2: Convert to fraction form
    10,211,420.80/15,317,131.20 = 9,361,115.20/x
  3. Step 3: Cross multiply
    10,211,420.80x = 15,317,131.20 × 9,361,115.20
  4. Step 4: Simplify right side
    10,211,420.80x = 143,385,429,696,714.22
  5. Step 5: Solve for x
    x = 143,385,429,696,714.22/10,211,420.80
  6. Step 6: Final answer
    x = 14,041,672.80

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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.