Home / 126,372,945.60-189,559,418.40-71,764,430.40

Finding the Fourth Proportional to 126,372,945.60, 189,559,418.40 and 71,764,430.40

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Solution

The fourth proportional to 126,372,945.60, 189,559,418.40 and 71,764,430.40 is: 107,646,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,945.60 : 189,559,418.40 = 71,764,430.40 : x
  2. Step 2: Convert to fraction form
    126,372,945.60/189,559,418.40 = 71,764,430.40/x
  3. Step 3: Cross multiply
    126,372,945.60x = 189,559,418.40 × 71,764,430.40
  4. Step 4: Simplify right side
    126,372,945.60x = 13,603,623,688,431,280
  5. Step 5: Solve for x
    x = 13,603,623,688,431,280/126,372,945.60
  6. Step 6: Final answer
    x = 107,646,645.60

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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.