Home / 18,381,143.40-27,571,715.10-10,318,986.60

Finding the Fourth Proportional to 18,381,143.40, 27,571,715.10 and 10,318,986.60

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Solution

The fourth proportional to 18,381,143.40, 27,571,715.10 and 10,318,986.60 is: 15,478,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,143.40 : 27,571,715.10 = 10,318,986.60 : x
  2. Step 2: Convert to fraction form
    18,381,143.40/27,571,715.10 = 10,318,986.60/x
  3. Step 3: Cross multiply
    18,381,143.40x = 27,571,715.10 × 10,318,986.60
  4. Step 4: Simplify right side
    18,381,143.40x = 284,512,158,655,917.69
  5. Step 5: Solve for x
    x = 284,512,158,655,917.69/18,381,143.40
  6. Step 6: Final answer
    x = 15,478,479.90

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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.