Home / 85,063,621.60-127,595,432.40-39,630,008.80

Finding the Fourth Proportional to 85,063,621.60, 127,595,432.40 and 39,630,008.80

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Solution

The fourth proportional to 85,063,621.60, 127,595,432.40 and 39,630,008.80 is: 59,445,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,063,621.60 : 127,595,432.40 = 39,630,008.80 : x
  2. Step 2: Convert to fraction form
    85,063,621.60/127,595,432.40 = 39,630,008.80/x
  3. Step 3: Cross multiply
    85,063,621.60x = 127,595,432.40 × 39,630,008.80
  4. Step 4: Simplify right side
    85,063,621.60x = 5,056,608,108,851,805
  5. Step 5: Solve for x
    x = 5,056,608,108,851,805/85,063,621.60
  6. Step 6: Final answer
    x = 59,445,013.20

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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.