Home / 155,368,383.13-214,393,103.88-85,749,280.03

Finding the Fourth Proportional to 155,368,383.13, 214,393,103.88 and 85,749,280.03

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Solution

The fourth proportional to 155,368,383.13, 214,393,103.88 and 85,749,280.03 is: 118,325,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,368,383.13 : 214,393,103.88 = 85,749,280.03 : x
  2. Step 2: Convert to fraction form
    155,368,383.13/214,393,103.88 = 85,749,280.03/x
  3. Step 3: Cross multiply
    155,368,383.13x = 214,393,103.88 × 85,749,280.03
  4. Step 4: Simplify right side
    155,368,383.13x = 18,384,054,301,107,000
  5. Step 5: Solve for x
    x = 18,384,054,301,107,000/155,368,383.13
  6. Step 6: Final answer
    x = 118,325,581.63

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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.