Home / 12,638,769.72-18,946,774.28-4,546,056.88

Finding the Fourth Proportional to 12,638,769.72, 18,946,774.28 and 4,546,056.88

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Solution

The fourth proportional to 12,638,769.72, 18,946,774.28 and 4,546,056.88 is: 6,814,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638,769.72 : 18,946,774.28 = 4,546,056.88 : x
  2. Step 2: Convert to fraction form
    12,638,769.72/18,946,774.28 = 4,546,056.88/x
  3. Step 3: Cross multiply
    12,638,769.72x = 18,946,774.28 × 4,546,056.88
  4. Step 4: Simplify right side
    12,638,769.72x = 86,133,113,569,401.05
  5. Step 5: Solve for x
    x = 86,133,113,569,401.05/12,638,769.72
  6. Step 6: Final answer
    x = 6,814,991.92

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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.