Home / 87,124,896.80-120,143,239.44-57,746,028.32

Finding the Fourth Proportional to 87,124,896.80, 120,143,239.44 and 57,746,028.32

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Solution

The fourth proportional to 87,124,896.80, 120,143,239.44 and 57,746,028.32 is: 79,630,451.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,124,896.80 : 120,143,239.44 = 57,746,028.32 : x
  2. Step 2: Convert to fraction form
    87,124,896.80/120,143,239.44 = 57,746,028.32/x
  3. Step 3: Cross multiply
    87,124,896.80x = 120,143,239.44 × 57,746,028.32
  4. Step 4: Simplify right side
    87,124,896.80x = 6,937,794,907,158,781
  5. Step 5: Solve for x
    x = 6,937,794,907,158,781/87,124,896.80
  6. Step 6: Final answer
    x = 79,630,451.94

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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.