Home / 432,039,003.72-647,796,072.76-169,408,919.28

Finding the Fourth Proportional to 432,039,003.72, 647,796,072.76 and 169,408,919.28

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Solution

The fourth proportional to 432,039,003.72, 647,796,072.76 and 169,408,919.28 is: 254,010,475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,039,003.72 : 647,796,072.76 = 169,408,919.28 : x
  2. Step 2: Convert to fraction form
    432,039,003.72/647,796,072.76 = 169,408,919.28/x
  3. Step 3: Cross multiply
    432,039,003.72x = 647,796,072.76 × 169,408,919.28
  4. Step 4: Simplify right side
    432,039,003.72x = 109,742,432,600,099,840
  5. Step 5: Solve for x
    x = 109,742,432,600,099,840/432,039,003.72
  6. Step 6: Final answer
    x = 254,010,475.11

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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.