Home / 20,392,465.20-30,588,697.80-11,771,311.20

Finding the Fourth Proportional to 20,392,465.20, 30,588,697.80 and 11,771,311.20

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Solution

The fourth proportional to 20,392,465.20, 30,588,697.80 and 11,771,311.20 is: 17,656,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,465.20 : 30,588,697.80 = 11,771,311.20 : x
  2. Step 2: Convert to fraction form
    20,392,465.20/30,588,697.80 = 11,771,311.20/x
  3. Step 3: Cross multiply
    20,392,465.20x = 30,588,697.80 × 11,771,311.20
  4. Step 4: Simplify right side
    20,392,465.20x = 360,069,081,006,555.38
  5. Step 5: Solve for x
    x = 360,069,081,006,555.38/20,392,465.20
  6. Step 6: Final answer
    x = 17,656,966.80

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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.