Home / 85,953,768.90-128,647,218.15-60,444,600.90

Finding the Fourth Proportional to 85,953,768.90, 128,647,218.15 and 60,444,600.90

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Solution

The fourth proportional to 85,953,768.90, 128,647,218.15 and 60,444,600.90 is: 90,467,583.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,953,768.90 : 128,647,218.15 = 60,444,600.90 : x
  2. Step 2: Convert to fraction form
    85,953,768.90/128,647,218.15 = 60,444,600.90/x
  3. Step 3: Cross multiply
    85,953,768.90x = 128,647,218.15 × 60,444,600.90
  4. Step 4: Simplify right side
    85,953,768.90x = 7,776,029,757,971,987
  5. Step 5: Solve for x
    x = 7,776,029,757,971,987/85,953,768.90
  6. Step 6: Final answer
    x = 90,467,583.42

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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.