Home / 145,244,877.09-200,436,635.53-79,165,371.93

Finding the Fourth Proportional to 145,244,877.09, 200,436,635.53 and 79,165,371.93

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Solution

The fourth proportional to 145,244,877.09, 200,436,635.53 and 79,165,371.93 is: 109,247,507.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,244,877.09 : 200,436,635.53 = 79,165,371.93 : x
  2. Step 2: Convert to fraction form
    145,244,877.09/200,436,635.53 = 79,165,371.93/x
  3. Step 3: Cross multiply
    145,244,877.09x = 200,436,635.53 × 79,165,371.93
  4. Step 4: Simplify right side
    145,244,877.09x = 15,867,640,800,130,304
  5. Step 5: Solve for x
    x = 15,867,640,800,130,304/145,244,877.09
  6. Step 6: Final answer
    x = 109,247,507.51

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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.