Home / 20,358,051.85-30,537,077.78-18,342,512.65

Finding the Fourth Proportional to 20,358,051.85, 30,537,077.78 and 18,342,512.65

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Solution

The fourth proportional to 20,358,051.85, 30,537,077.78 and 18,342,512.65 is: 27,513,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358,051.85 : 30,537,077.78 = 18,342,512.65 : x
  2. Step 2: Convert to fraction form
    20,358,051.85/30,537,077.78 = 18,342,512.65/x
  3. Step 3: Cross multiply
    20,358,051.85x = 30,537,077.78 × 18,342,512.65
  4. Step 4: Simplify right side
    20,358,051.85x = 560,126,735,381,971.25
  5. Step 5: Solve for x
    x = 560,126,735,381,971.25/20,358,051.85
  6. Step 6: Final answer
    x = 27,513,768.98

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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.