Home / 84,220,219.60-126,330,329.40-20,394,811.60

Finding the Fourth Proportional to 84,220,219.60, 126,330,329.40 and 20,394,811.60

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Solution

The fourth proportional to 84,220,219.60, 126,330,329.40 and 20,394,811.60 is: 30,592,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,220,219.60 : 126,330,329.40 = 20,394,811.60 : x
  2. Step 2: Convert to fraction form
    84,220,219.60/126,330,329.40 = 20,394,811.60/x
  3. Step 3: Cross multiply
    84,220,219.60x = 126,330,329.40 × 20,394,811.60
  4. Step 4: Simplify right side
    84,220,219.60x = 2,576,483,267,478,941.50
  5. Step 5: Solve for x
    x = 2,576,483,267,478,941.50/84,220,219.60
  6. Step 6: Final answer
    x = 30,592,217.40

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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.