Home / 85,063,620.60-127,595,430.90-39,630,007.80

Finding the Fourth Proportional to 85,063,620.60, 127,595,430.90 and 39,630,007.80

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Solution

The fourth proportional to 85,063,620.60, 127,595,430.90 and 39,630,007.80 is: 59,445,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,063,620.60 : 127,595,430.90 = 39,630,007.80 : x
  2. Step 2: Convert to fraction form
    85,063,620.60/127,595,430.90 = 39,630,007.80/x
  3. Step 3: Cross multiply
    85,063,620.60x = 127,595,430.90 × 39,630,007.80
  4. Step 4: Simplify right side
    85,063,620.60x = 5,056,607,921,811,361
  5. Step 5: Solve for x
    x = 5,056,607,921,811,361/85,063,620.60
  6. Step 6: Final answer
    x = 59,445,011.70

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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.