Home / 12,645,320.80-17,450,965.23-7,749,596.91

Finding the Fourth Proportional to 12,645,320.80, 17,450,965.23 and 7,749,596.91

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Solution

The fourth proportional to 12,645,320.80, 17,450,965.23 and 7,749,596.91 is: 10,694,702.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645,320.80 : 17,450,965.23 = 7,749,596.91 : x
  2. Step 2: Convert to fraction form
    12,645,320.80/17,450,965.23 = 7,749,596.91/x
  3. Step 3: Cross multiply
    12,645,320.80x = 17,450,965.23 × 7,749,596.91
  4. Step 4: Simplify right side
    12,645,320.80x = 135,237,946,221,115.42
  5. Step 5: Solve for x
    x = 135,237,946,221,115.42/12,645,320.80
  6. Step 6: Final answer
    x = 10,694,702.68

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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.