Home / 20,316,111.70-28,034,853.85-11,149,344.94

Finding the Fourth Proportional to 20,316,111.70, 28,034,853.85 and 11,149,344.94

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Solution

The fourth proportional to 20,316,111.70, 28,034,853.85 and 11,149,344.94 is: 15,385,338.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316,111.70 : 28,034,853.85 = 11,149,344.94 : x
  2. Step 2: Convert to fraction form
    20,316,111.70/28,034,853.85 = 11,149,344.94/x
  3. Step 3: Cross multiply
    20,316,111.70x = 28,034,853.85 × 11,149,344.94
  4. Step 4: Simplify right side
    20,316,111.70x = 312,570,255,916,137
  5. Step 5: Solve for x
    x = 312,570,255,916,137/20,316,111.70
  6. Step 6: Final answer
    x = 15,385,338.52

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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.