Home / 19,928,209.20-29,892,313.80-13,125,764.40

Finding the Fourth Proportional to 19,928,209.20, 29,892,313.80 and 13,125,764.40

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Solution

The fourth proportional to 19,928,209.20, 29,892,313.80 and 13,125,764.40 is: 19,688,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,209.20 : 29,892,313.80 = 13,125,764.40 : x
  2. Step 2: Convert to fraction form
    19,928,209.20/29,892,313.80 = 13,125,764.40/x
  3. Step 3: Cross multiply
    19,928,209.20x = 29,892,313.80 × 13,125,764.40
  4. Step 4: Simplify right side
    19,928,209.20x = 392,359,468,309,668.75
  5. Step 5: Solve for x
    x = 392,359,468,309,668.75/19,928,209.20
  6. Step 6: Final answer
    x = 19,688,646.60

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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.