Home / 86,747,281.60-130,120,922.40-47,780,190.40

Finding the Fourth Proportional to 86,747,281.60, 130,120,922.40 and 47,780,190.40

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Solution

The fourth proportional to 86,747,281.60, 130,120,922.40 and 47,780,190.40 is: 71,670,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,747,281.60 : 130,120,922.40 = 47,780,190.40 : x
  2. Step 2: Convert to fraction form
    86,747,281.60/130,120,922.40 = 47,780,190.40/x
  3. Step 3: Cross multiply
    86,747,281.60x = 130,120,922.40 × 47,780,190.40
  4. Step 4: Simplify right side
    86,747,281.60x = 6,217,202,447,295,625
  5. Step 5: Solve for x
    x = 6,217,202,447,295,625/86,747,281.60
  6. Step 6: Final answer
    x = 71,670,285.60

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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.