Home / 145,622,091.15-200,957,127.21-79,542,564.12

Finding the Fourth Proportional to 145,622,091.15, 200,957,127.21 and 79,542,564.12

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Solution

The fourth proportional to 145,622,091.15, 200,957,127.21 and 79,542,564.12 is: 109,767,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,622,091.15 : 200,957,127.21 = 79,542,564.12 : x
  2. Step 2: Convert to fraction form
    145,622,091.15/200,957,127.21 = 79,542,564.12/x
  3. Step 3: Cross multiply
    145,622,091.15x = 200,957,127.21 × 79,542,564.12
  4. Step 4: Simplify right side
    145,622,091.15x = 15,984,645,176,472,424
  5. Step 5: Solve for x
    x = 15,984,645,176,472,424/145,622,091.15
  6. Step 6: Final answer
    x = 109,767,996.40

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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.