Home / 13,247,588.34-18,278,989.38-7,739,898.60

Finding the Fourth Proportional to 13,247,588.34, 18,278,989.38 and 7,739,898.60

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Solution

The fourth proportional to 13,247,588.34, 18,278,989.38 and 7,739,898.60 is: 10,679,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247,588.34 : 18,278,989.38 = 7,739,898.60 : x
  2. Step 2: Convert to fraction form
    13,247,588.34/18,278,989.38 = 7,739,898.60/x
  3. Step 3: Cross multiply
    13,247,588.34x = 18,278,989.38 × 7,739,898.60
  4. Step 4: Simplify right side
    13,247,588.34x = 141,477,524,311,676.84
  5. Step 5: Solve for x
    x = 141,477,524,311,676.84/13,247,588.34
  6. Step 6: Final answer
    x = 10,679,492.80

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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.