Home / 85,748,520.42-128,550,475.38-37,189,801.26

Finding the Fourth Proportional to 85,748,520.42, 128,550,475.38 and 37,189,801.26

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Solution

The fourth proportional to 85,748,520.42, 128,550,475.38 and 37,189,801.26 is: 55,753,342.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,748,520.42 : 128,550,475.38 = 37,189,801.26 : x
  2. Step 2: Convert to fraction form
    85,748,520.42/128,550,475.38 = 37,189,801.26/x
  3. Step 3: Cross multiply
    85,748,520.42x = 128,550,475.38 × 37,189,801.26
  4. Step 4: Simplify right side
    85,748,520.42x = 4,780,766,631,260,723
  5. Step 5: Solve for x
    x = 4,780,766,631,260,723/85,748,520.42
  6. Step 6: Final answer
    x = 55,753,342.54

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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.