Home / 20,920,072.60-31,380,108.90-7,452,040.60

Finding the Fourth Proportional to 20,920,072.60, 31,380,108.90 and 7,452,040.60

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Solution

The fourth proportional to 20,920,072.60, 31,380,108.90 and 7,452,040.60 is: 11,178,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,920,072.60 : 31,380,108.90 = 7,452,040.60 : x
  2. Step 2: Convert to fraction form
    20,920,072.60/31,380,108.90 = 7,452,040.60/x
  3. Step 3: Cross multiply
    20,920,072.60x = 31,380,108.90 × 7,452,040.60
  4. Step 4: Simplify right side
    20,920,072.60x = 233,845,845,555,221.31
  5. Step 5: Solve for x
    x = 233,845,845,555,221.31/20,920,072.60
  6. Step 6: Final answer
    x = 11,178,060.90

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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.