Home / 64,656,995.76-89,198,665.20-39,540,208.08

Finding the Fourth Proportional to 64,656,995.76, 89,198,665.20 and 39,540,208.08

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Solution

The fourth proportional to 64,656,995.76, 89,198,665.20 and 39,540,208.08 is: 54,548,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,656,995.76 : 89,198,665.20 = 39,540,208.08 : x
  2. Step 2: Convert to fraction form
    64,656,995.76/89,198,665.20 = 39,540,208.08/x
  3. Step 3: Cross multiply
    64,656,995.76x = 89,198,665.20 × 39,540,208.08
  4. Step 4: Simplify right side
    64,656,995.76x = 3,526,933,782,466,255
  5. Step 5: Solve for x
    x = 3,526,933,782,466,255/64,656,995.76
  6. Step 6: Final answer
    x = 54,548,370.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.