Home / 20,138,607.40-30,207,911.10-5,762,144.20

Finding the Fourth Proportional to 20,138,607.40, 30,207,911.10 and 5,762,144.20

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Solution

The fourth proportional to 20,138,607.40, 30,207,911.10 and 5,762,144.20 is: 8,643,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,607.40 : 30,207,911.10 = 5,762,144.20 : x
  2. Step 2: Convert to fraction form
    20,138,607.40/30,207,911.10 = 5,762,144.20/x
  3. Step 3: Cross multiply
    20,138,607.40x = 30,207,911.10 × 5,762,144.20
  4. Step 4: Simplify right side
    20,138,607.40x = 174,062,339,738,980.62
  5. Step 5: Solve for x
    x = 174,062,339,738,980.62/20,138,607.40
  6. Step 6: Final answer
    x = 8,643,216.30

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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.