Home / 20,138,605.40-30,207,908.10-5,762,142.20

Finding the Fourth Proportional to 20,138,605.40, 30,207,908.10 and 5,762,142.20

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Solution

The fourth proportional to 20,138,605.40, 30,207,908.10 and 5,762,142.20 is: 8,643,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,605.40 : 30,207,908.10 = 5,762,142.20 : x
  2. Step 2: Convert to fraction form
    20,138,605.40/30,207,908.10 = 5,762,142.20/x
  3. Step 3: Cross multiply
    20,138,605.40x = 30,207,908.10 × 5,762,142.20
  4. Step 4: Simplify right side
    20,138,605.40x = 174,062,262,036,731.84
  5. Step 5: Solve for x
    x = 174,062,262,036,731.84/20,138,605.40
  6. Step 6: Final answer
    x = 8,643,213.30

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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.