Home / 20,537,407.05-28,341,628.59-11,245,564.80

Finding the Fourth Proportional to 20,537,407.05, 28,341,628.59 and 11,245,564.80

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Solution

The fourth proportional to 20,537,407.05, 28,341,628.59 and 11,245,564.80 is: 15,518,883.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537,407.05 : 28,341,628.59 = 11,245,564.80 : x
  2. Step 2: Convert to fraction form
    20,537,407.05/28,341,628.59 = 11,245,564.80/x
  3. Step 3: Cross multiply
    20,537,407.05x = 28,341,628.59 × 11,245,564.80
  4. Step 4: Simplify right side
    20,537,407.05x = 318,717,620,846,377.62
  5. Step 5: Solve for x
    x = 318,717,620,846,377.62/20,537,407.05
  6. Step 6: Final answer
    x = 15,518,883.18

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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.