Home / 7,175,231.91-9,901,686.65-3,912,074.82

Finding the Fourth Proportional to 7,175,231.91, 9,901,686.65 and 3,912,074.82

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Solution

The fourth proportional to 7,175,231.91, 9,901,686.65 and 3,912,074.82 is: 5,398,590.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175,231.91 : 9,901,686.65 = 3,912,074.82 : x
  2. Step 2: Convert to fraction form
    7,175,231.91/9,901,686.65 = 3,912,074.82/x
  3. Step 3: Cross multiply
    7,175,231.91x = 9,901,686.65 × 3,912,074.82
  4. Step 4: Simplify right side
    7,175,231.91x = 38,736,138,999,434.77
  5. Step 5: Solve for x
    x = 38,736,138,999,434.77/7,175,231.91
  6. Step 6: Final answer
    x = 5,398,590.52

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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.