Home / 66,517,814.25-91,127,874.62-64,030,919.18

Finding the Fourth Proportional to 66,517,814.25, 91,127,874.62 and 64,030,919.18

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Solution

The fourth proportional to 66,517,814.25, 91,127,874.62 and 64,030,919.18 is: 87,720,885.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,517,814.25 : 91,127,874.62 = 64,030,919.18 : x
  2. Step 2: Convert to fraction form
    66,517,814.25/91,127,874.62 = 64,030,919.18/x
  3. Step 3: Cross multiply
    66,517,814.25x = 91,127,874.62 × 64,030,919.18
  4. Step 4: Simplify right side
    66,517,814.25x = 5,835,001,574,542,831
  5. Step 5: Solve for x
    x = 5,835,001,574,542,831/66,517,814.25
  6. Step 6: Final answer
    x = 87,720,885.61

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.