Home / 113,315,408.70-169,973,113.05-45,206,979.90

Finding the Fourth Proportional to 113,315,408.70, 169,973,113.05 and 45,206,979.90

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Solution

The fourth proportional to 113,315,408.70, 169,973,113.05 and 45,206,979.90 is: 67,810,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315,408.70 : 169,973,113.05 = 45,206,979.90 : x
  2. Step 2: Convert to fraction form
    113,315,408.70/169,973,113.05 = 45,206,979.90/x
  3. Step 3: Cross multiply
    113,315,408.70x = 169,973,113.05 × 45,206,979.90
  4. Step 4: Simplify right side
    113,315,408.70x = 7,683,971,105,191,778
  5. Step 5: Solve for x
    x = 7,683,971,105,191,778/113,315,408.70
  6. Step 6: Final answer
    x = 67,810,469.85

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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.