Home / 84,220,213.60-126,330,320.40-20,394,805.60

Finding the Fourth Proportional to 84,220,213.60, 126,330,320.40 and 20,394,805.60

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Solution

The fourth proportional to 84,220,213.60, 126,330,320.40 and 20,394,805.60 is: 30,592,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,220,213.60 : 126,330,320.40 = 20,394,805.60 : x
  2. Step 2: Convert to fraction form
    84,220,213.60/126,330,320.40 = 20,394,805.60/x
  3. Step 3: Cross multiply
    84,220,213.60x = 126,330,320.40 × 20,394,805.60
  4. Step 4: Simplify right side
    84,220,213.60x = 2,576,482,325,943,714.50
  5. Step 5: Solve for x
    x = 2,576,482,325,943,714.50/84,220,213.60
  6. Step 6: Final answer
    x = 30,592,208.40

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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.