Home / 13,215,572.20-18,237,214.83-7,334,861.40

Finding the Fourth Proportional to 13,215,572.20, 18,237,214.83 and 7,334,861.40

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Solution

The fourth proportional to 13,215,572.20, 18,237,214.83 and 7,334,861.40 is: 10,121,956.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,572.20 : 18,237,214.83 = 7,334,861.40 : x
  2. Step 2: Convert to fraction form
    13,215,572.20/18,237,214.83 = 7,334,861.40/x
  3. Step 3: Cross multiply
    13,215,572.20x = 18,237,214.83 × 7,334,861.40
  4. Step 4: Simplify right side
    13,215,572.20x = 133,767,443,178,872.44
  5. Step 5: Solve for x
    x = 133,767,443,178,872.44/13,215,572.20
  6. Step 6: Final answer
    x = 10,121,956.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.