Home / 145,244,876.09-200,436,634.15-79,165,370.93

Finding the Fourth Proportional to 145,244,876.09, 200,436,634.15 and 79,165,370.93

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Solution

The fourth proportional to 145,244,876.09, 200,436,634.15 and 79,165,370.93 is: 109,247,506.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,244,876.09 : 200,436,634.15 = 79,165,370.93 : x
  2. Step 2: Convert to fraction form
    145,244,876.09/200,436,634.15 = 79,165,370.93/x
  3. Step 3: Cross multiply
    145,244,876.09x = 200,436,634.15 × 79,165,370.93
  4. Step 4: Simplify right side
    145,244,876.09x = 15,867,640,489,245,358
  5. Step 5: Solve for x
    x = 15,867,640,489,245,358/145,244,876.09
  6. Step 6: Final answer
    x = 109,247,506.12

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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.