Home / 20,158,205.20-30,237,307.80-7,387,874.80

Finding the Fourth Proportional to 20,158,205.20, 30,237,307.80 and 7,387,874.80

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Solution

The fourth proportional to 20,158,205.20, 30,237,307.80 and 7,387,874.80 is: 11,081,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158,205.20 : 30,237,307.80 = 7,387,874.80 : x
  2. Step 2: Convert to fraction form
    20,158,205.20/30,237,307.80 = 7,387,874.80/x
  3. Step 3: Cross multiply
    20,158,205.20x = 30,237,307.80 × 7,387,874.80
  4. Step 4: Simplify right side
    20,158,205.20x = 223,389,444,315,463.44
  5. Step 5: Solve for x
    x = 223,389,444,315,463.44/20,158,205.20
  6. Step 6: Final answer
    x = 11,081,812.20

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1.5x scale

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.