Home / 73,276,938.90-109,915,408.35-18,689,418.90

Finding the Fourth Proportional to 73,276,938.90, 109,915,408.35 and 18,689,418.90

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Solution

The fourth proportional to 73,276,938.90, 109,915,408.35 and 18,689,418.90 is: 28,034,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,276,938.90 : 109,915,408.35 = 18,689,418.90 : x
  2. Step 2: Convert to fraction form
    73,276,938.90/109,915,408.35 = 18,689,418.90/x
  3. Step 3: Cross multiply
    73,276,938.90x = 109,915,408.35 × 18,689,418.90
  4. Step 4: Simplify right side
    73,276,938.90x = 2,054,255,110,217,707.50
  5. Step 5: Solve for x
    x = 2,054,255,110,217,707.50/73,276,938.90
  6. Step 6: Final answer
    x = 28,034,128.35

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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.