Home / 199,315,090.40-298,972,635.60-91,819,666.40

Finding the Fourth Proportional to 199,315,090.40, 298,972,635.60 and 91,819,666.40

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Solution

The fourth proportional to 199,315,090.40, 298,972,635.60 and 91,819,666.40 is: 137,729,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,315,090.40 : 298,972,635.60 = 91,819,666.40 : x
  2. Step 2: Convert to fraction form
    199,315,090.40/298,972,635.60 = 91,819,666.40/x
  3. Step 3: Cross multiply
    199,315,090.40x = 298,972,635.60 × 91,819,666.40
  4. Step 4: Simplify right side
    199,315,090.40x = 27,451,567,663,520,768
  5. Step 5: Solve for x
    x = 27,451,567,663,520,768/199,315,090.40
  6. Step 6: Final answer
    x = 137,729,499.60

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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.