Home / 12,455,611.60-18,691,290.60-7,338,031.60

Finding the Fourth Proportional to 12,455,611.60, 18,691,290.60 and 7,338,031.60

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Solution

The fourth proportional to 12,455,611.60, 18,691,290.60 and 7,338,031.60 is: 11,011,685.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,611.60 : 18,691,290.60 = 7,338,031.60 : x
  2. Step 2: Convert to fraction form
    12,455,611.60/18,691,290.60 = 7,338,031.60/x
  3. Step 3: Cross multiply
    12,455,611.60x = 18,691,290.60 × 7,338,031.60
  4. Step 4: Simplify right side
    12,455,611.60x = 137,157,281,067,582.97
  5. Step 5: Solve for x
    x = 137,157,281,067,582.97/12,455,611.60
  6. Step 6: Final answer
    x = 11,011,685.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.