Home / 12,143,427.45-18,215,219.43-4,857,495.87

Finding the Fourth Proportional to 12,143,427.45, 18,215,219.43 and 4,857,495.87

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Solution

The fourth proportional to 12,143,427.45, 18,215,219.43 and 4,857,495.87 is: 7,286,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,427.45 : 18,215,219.43 = 4,857,495.87 : x
  2. Step 2: Convert to fraction form
    12,143,427.45/18,215,219.43 = 4,857,495.87/x
  3. Step 3: Cross multiply
    12,143,427.45x = 18,215,219.43 × 4,857,495.87
  4. Step 4: Simplify right side
    12,143,427.45x = 88,480,353,152,368.75
  5. Step 5: Solve for x
    x = 88,480,353,152,368.75/12,143,427.45
  6. Step 6: Final answer
    x = 7,286,275.11

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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.