Home / 21,053,516.80-31,555,780.80-9,695,113.60

Finding the Fourth Proportional to 21,053,516.80, 31,555,780.80 and 9,695,113.60

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Solution

The fourth proportional to 21,053,516.80, 31,555,780.80 and 9,695,113.60 is: 14,531,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053,516.80 : 31,555,780.80 = 9,695,113.60 : x
  2. Step 2: Convert to fraction form
    21,053,516.80/31,555,780.80 = 9,695,113.60/x
  3. Step 3: Cross multiply
    21,053,516.80x = 31,555,780.80 × 9,695,113.60
  4. Step 4: Simplify right side
    21,053,516.80x = 305,936,879,592,698.88
  5. Step 5: Solve for x
    x = 305,936,879,592,698.88/21,053,516.80
  6. Step 6: Final answer
    x = 14,531,390.76

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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.