Home / 81,658,200.60-122,487,300.90-40,843,531.80

Finding the Fourth Proportional to 81,658,200.60, 122,487,300.90 and 40,843,531.80

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Solution

The fourth proportional to 81,658,200.60, 122,487,300.90 and 40,843,531.80 is: 61,265,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,658,200.60 : 122,487,300.90 = 40,843,531.80 : x
  2. Step 2: Convert to fraction form
    81,658,200.60/122,487,300.90 = 40,843,531.80/x
  3. Step 3: Cross multiply
    81,658,200.60x = 122,487,300.90 × 40,843,531.80
  4. Step 4: Simplify right side
    81,658,200.60x = 5,002,813,969,405,318
  5. Step 5: Solve for x
    x = 5,002,813,969,405,318/81,658,200.60
  6. Step 6: Final answer
    x = 61,265,297.70

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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.