Home / 21,789,011.20-32,680,017.60-6,639,419.20

Finding the Fourth Proportional to 21,789,011.20, 32,680,017.60 and 6,639,419.20

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Solution

The fourth proportional to 21,789,011.20, 32,680,017.60 and 6,639,419.20 is: 9,958,062.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,011.20 : 32,680,017.60 = 6,639,419.20 : x
  2. Step 2: Convert to fraction form
    21,789,011.20/32,680,017.60 = 6,639,419.20/x
  3. Step 3: Cross multiply
    21,789,011.20x = 32,680,017.60 × 6,639,419.20
  4. Step 4: Simplify right side
    21,789,011.20x = 216,976,336,309,777.94
  5. Step 5: Solve for x
    x = 216,976,336,309,777.94/21,789,011.20
  6. Step 6: Final answer
    x = 9,958,062.54

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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.