Home / 20,412,117.60-30,618,176.40-9,074,709.60

Finding the Fourth Proportional to 20,412,117.60, 30,618,176.40 and 9,074,709.60

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Solution

The fourth proportional to 20,412,117.60, 30,618,176.40 and 9,074,709.60 is: 13,612,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,117.60 : 30,618,176.40 = 9,074,709.60 : x
  2. Step 2: Convert to fraction form
    20,412,117.60/30,618,176.40 = 9,074,709.60/x
  3. Step 3: Cross multiply
    20,412,117.60x = 30,618,176.40 × 9,074,709.60
  4. Step 4: Simplify right side
    20,412,117.60x = 277,851,059,311,573.41
  5. Step 5: Solve for x
    x = 277,851,059,311,573.41/20,412,117.60
  6. Step 6: Final answer
    x = 13,612,064.40

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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.