Home / 20,081,340.20-30,101,015.10-10,969,423.40

Finding the Fourth Proportional to 20,081,340.20, 30,101,015.10 and 10,969,423.40

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Solution

The fourth proportional to 20,081,340.20, 30,101,015.10 and 10,969,423.40 is: 16,442,666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081,340.20 : 30,101,015.10 = 10,969,423.40 : x
  2. Step 2: Convert to fraction form
    20,081,340.20/30,101,015.10 = 10,969,423.40/x
  3. Step 3: Cross multiply
    20,081,340.20x = 30,101,015.10 × 10,969,423.40
  4. Step 4: Simplify right side
    20,081,340.20x = 330,190,779,401,693.38
  5. Step 5: Solve for x
    x = 330,190,779,401,693.38/20,081,340.20
  6. Step 6: Final answer
    x = 16,442,666.48

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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.