Home / 221,971,707.38-306,321,611.55-122,859,338.69

Finding the Fourth Proportional to 221,971,707.38, 306,321,611.55 and 122,859,338.69

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Solution

The fourth proportional to 221,971,707.38, 306,321,611.55 and 122,859,338.69 is: 169,546,250.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,971,707.38 : 306,321,611.55 = 122,859,338.69 : x
  2. Step 2: Convert to fraction form
    221,971,707.38/306,321,611.55 = 122,859,338.69/x
  3. Step 3: Cross multiply
    221,971,707.38x = 306,321,611.55 × 122,859,338.69
  4. Step 4: Simplify right side
    221,971,707.38x = 37,634,470,621,488,064
  5. Step 5: Solve for x
    x = 37,634,470,621,488,064/221,971,707.38
  6. Step 6: Final answer
    x = 169,546,250.13

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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.