Home / 85,954,535.44-128,850,752.90-42,782,925.80

Finding the Fourth Proportional to 85,954,535.44, 128,850,752.90 and 42,782,925.80

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Solution

The fourth proportional to 85,954,535.44, 128,850,752.90 and 42,782,925.80 is: 64,134,046.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,954,535.44 : 128,850,752.90 = 42,782,925.80 : x
  2. Step 2: Convert to fraction form
    85,954,535.44/128,850,752.90 = 42,782,925.80/x
  3. Step 3: Cross multiply
    85,954,535.44x = 128,850,752.90 × 42,782,925.80
  4. Step 4: Simplify right side
    85,954,535.44x = 5,512,612,201,023,919
  5. Step 5: Solve for x
    x = 5,512,612,201,023,919/85,954,535.44
  6. Step 6: Final answer
    x = 64,134,046.83

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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.