Home / 126,044,163.40-189,066,245.10-78,734,104.60

Finding the Fourth Proportional to 126,044,163.40, 189,066,245.10 and 78,734,104.60

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Solution

The fourth proportional to 126,044,163.40, 189,066,245.10 and 78,734,104.60 is: 118,101,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,044,163.40 : 189,066,245.10 = 78,734,104.60 : x
  2. Step 2: Convert to fraction form
    126,044,163.40/189,066,245.10 = 78,734,104.60/x
  3. Step 3: Cross multiply
    126,044,163.40x = 189,066,245.10 × 78,734,104.60
  4. Step 4: Simplify right side
    126,044,163.40x = 14,885,961,518,032,636
  5. Step 5: Solve for x
    x = 14,885,961,518,032,636/126,044,163.40
  6. Step 6: Final answer
    x = 118,101,156.90

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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.