Home / 21,037,556.80-31,556,335.20-6,661,749.70

Finding the Fourth Proportional to 21,037,556.80, 31,556,335.20 and 6,661,749.70

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Solution

The fourth proportional to 21,037,556.80, 31,556,335.20 and 6,661,749.70 is: 9,992,624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037,556.80 : 31,556,335.20 = 6,661,749.70 : x
  2. Step 2: Convert to fraction form
    21,037,556.80/31,556,335.20 = 6,661,749.70/x
  3. Step 3: Cross multiply
    21,037,556.80x = 31,556,335.20 × 6,661,749.70
  4. Step 4: Simplify right side
    21,037,556.80x = 210,220,406,551,699.44
  5. Step 5: Solve for x
    x = 210,220,406,551,699.44/21,037,556.80
  6. Step 6: Final answer
    x = 9,992,624.55

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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.