Home / 12,803,782.20-17,668,113.84-7,221,721.47

Finding the Fourth Proportional to 12,803,782.20, 17,668,113.84 and 7,221,721.47

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Solution

The fourth proportional to 12,803,782.20, 17,668,113.84 and 7,221,721.47 is: 9,965,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803,782.20 : 17,668,113.84 = 7,221,721.47 : x
  2. Step 2: Convert to fraction form
    12,803,782.20/17,668,113.84 = 7,221,721.47/x
  3. Step 3: Cross multiply
    12,803,782.20x = 17,668,113.84 × 7,221,721.47
  4. Step 4: Simplify right side
    12,803,782.20x = 127,594,197,052,732.14
  5. Step 5: Solve for x
    x = 127,594,197,052,732.14/12,803,782.20
  6. Step 6: Final answer
    x = 9,965,352.04

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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.