Home / 38,784,246.12-53,522,421.66-21,380,209.47

Finding the Fourth Proportional to 38,784,246.12, 53,522,421.66 and 21,380,209.47

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Solution

The fourth proportional to 38,784,246.12, 53,522,421.66 and 21,380,209.47 is: 29,504,778.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,784,246.12 : 53,522,421.66 = 21,380,209.47 : x
  2. Step 2: Convert to fraction form
    38,784,246.12/53,522,421.66 = 21,380,209.47/x
  3. Step 3: Cross multiply
    38,784,246.12x = 53,522,421.66 × 21,380,209.47
  4. Step 4: Simplify right side
    38,784,246.12x = 1,144,320,586,432,465
  5. Step 5: Solve for x
    x = 1,144,320,586,432,465/38,784,246.12
  6. Step 6: Final answer
    x = 29,504,778.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.