Home / 142,280,887.20-196,271,884.32-86,543,355.12

Finding the Fourth Proportional to 142,280,887.20, 196,271,884.32 and 86,543,355.12

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Solution

The fourth proportional to 142,280,887.20, 196,271,884.32 and 86,543,355.12 is: 119,383,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,280,887.20 : 196,271,884.32 = 86,543,355.12 : x
  2. Step 2: Convert to fraction form
    142,280,887.20/196,271,884.32 = 86,543,355.12/x
  3. Step 3: Cross multiply
    142,280,887.20x = 196,271,884.32 × 86,543,355.12
  4. Step 4: Simplify right side
    142,280,887.20x = 16,986,027,384,777,320
  5. Step 5: Solve for x
    x = 16,986,027,384,777,320/142,280,887.20
  6. Step 6: Final answer
    x = 119,383,760.67

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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.