Home / 12,949,644.74-17,870,552.55-7,148,412.69

Finding the Fourth Proportional to 12,949,644.74, 17,870,552.55 and 7,148,412.69

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Solution

The fourth proportional to 12,949,644.74, 17,870,552.55 and 7,148,412.69 is: 9,864,833.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,644.74 : 17,870,552.55 = 7,148,412.69 : x
  2. Step 2: Convert to fraction form
    12,949,644.74/17,870,552.55 = 7,148,412.69/x
  3. Step 3: Cross multiply
    12,949,644.74x = 17,870,552.55 × 7,148,412.69
  4. Step 4: Simplify right side
    12,949,644.74x = 127,746,084,625,731.88
  5. Step 5: Solve for x
    x = 127,746,084,625,731.88/12,949,644.74
  6. Step 6: Final answer
    x = 9,864,833.15

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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.