Home / 56,784,690.20-85,177,035.30-20,878,232.60

Finding the Fourth Proportional to 56,784,690.20, 85,177,035.30 and 20,878,232.60

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Solution

The fourth proportional to 56,784,690.20, 85,177,035.30 and 20,878,232.60 is: 31,317,348.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,784,690.20 : 85,177,035.30 = 20,878,232.60 : x
  2. Step 2: Convert to fraction form
    56,784,690.20/85,177,035.30 = 20,878,232.60/x
  3. Step 3: Cross multiply
    56,784,690.20x = 85,177,035.30 × 20,878,232.60
  4. Step 4: Simplify right side
    56,784,690.20x = 1,778,345,955,171,810.75
  5. Step 5: Solve for x
    x = 1,778,345,955,171,810.75/56,784,690.20
  6. Step 6: Final answer
    x = 31,317,348.90

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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.