Home / 15,751,751.75-21,737,288.71-8,782,346.51

Finding the Fourth Proportional to 15,751,751.75, 21,737,288.71 and 8,782,346.51

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Solution

The fourth proportional to 15,751,751.75, 21,737,288.71 and 8,782,346.51 is: 12,119,566.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751,751.75 : 21,737,288.71 = 8,782,346.51 : x
  2. Step 2: Convert to fraction form
    15,751,751.75/21,737,288.71 = 8,782,346.51/x
  3. Step 3: Cross multiply
    15,751,751.75x = 21,737,288.71 × 8,782,346.51
  4. Step 4: Simplify right side
    15,751,751.75x = 190,904,401,639,130.91
  5. Step 5: Solve for x
    x = 190,904,401,639,130.91/15,751,751.75
  6. Step 6: Final answer
    x = 12,119,566.42

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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.