Home / 126,372,391.80-189,558,587.70-103,414,140.60

Finding the Fourth Proportional to 126,372,391.80, 189,558,587.70 and 103,414,140.60

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Solution

The fourth proportional to 126,372,391.80, 189,558,587.70 and 103,414,140.60 is: 155,121,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,391.80 : 189,558,587.70 = 103,414,140.60 : x
  2. Step 2: Convert to fraction form
    126,372,391.80/189,558,587.70 = 103,414,140.60/x
  3. Step 3: Cross multiply
    126,372,391.80x = 189,558,587.70 × 103,414,140.60
  4. Step 4: Simplify right side
    126,372,391.80x = 19,603,038,440,345,228
  5. Step 5: Solve for x
    x = 19,603,038,440,345,228/126,372,391.80
  6. Step 6: Final answer
    x = 155,121,210.90

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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.