Home / 20,497,960.58-28,287,242.62-11,205,642.94

Finding the Fourth Proportional to 20,497,960.58, 28,287,242.62 and 11,205,642.94

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Solution

The fourth proportional to 20,497,960.58, 28,287,242.62 and 11,205,642.94 is: 15,463,818.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497,960.58 : 28,287,242.62 = 11,205,642.94 : x
  2. Step 2: Convert to fraction form
    20,497,960.58/28,287,242.62 = 11,205,642.94/x
  3. Step 3: Cross multiply
    20,497,960.58x = 28,287,242.62 × 11,205,642.94
  4. Step 4: Simplify right side
    20,497,960.58x = 316,976,740,556,870.12
  5. Step 5: Solve for x
    x = 316,976,740,556,870.12/20,497,960.58
  6. Step 6: Final answer
    x = 15,463,818.43

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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.