Home / 85,063,631.60-127,595,447.40-39,630,018.80

Finding the Fourth Proportional to 85,063,631.60, 127,595,447.40 and 39,630,018.80

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Solution

The fourth proportional to 85,063,631.60, 127,595,447.40 and 39,630,018.80 is: 59,445,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,063,631.60 : 127,595,447.40 = 39,630,018.80 : x
  2. Step 2: Convert to fraction form
    85,063,631.60/127,595,447.40 = 39,630,018.80/x
  3. Step 3: Cross multiply
    85,063,631.60x = 127,595,447.40 × 39,630,018.80
  4. Step 4: Simplify right side
    85,063,631.60x = 5,056,609,979,256,411
  5. Step 5: Solve for x
    x = 5,056,609,979,256,411/85,063,631.60
  6. Step 6: Final answer
    x = 59,445,028.20

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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.