Home / 86,016,099.80-129,024,149.70-64,782,435.80

Finding the Fourth Proportional to 86,016,099.80, 129,024,149.70 and 64,782,435.80

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Solution

The fourth proportional to 86,016,099.80, 129,024,149.70 and 64,782,435.80 is: 97,173,653.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,016,099.80 : 129,024,149.70 = 64,782,435.80 : x
  2. Step 2: Convert to fraction form
    86,016,099.80/129,024,149.70 = 64,782,435.80/x
  3. Step 3: Cross multiply
    86,016,099.80x = 129,024,149.70 × 64,782,435.80
  4. Step 4: Simplify right side
    86,016,099.80x = 8,358,498,694,589,839
  5. Step 5: Solve for x
    x = 8,358,498,694,589,839/86,016,099.80
  6. Step 6: Final answer
    x = 97,173,653.70

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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.