Home / 133,030,935.40-199,546,403.10-87,643,978.60

Finding the Fourth Proportional to 133,030,935.40, 199,546,403.10 and 87,643,978.60

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Solution

The fourth proportional to 133,030,935.40, 199,546,403.10 and 87,643,978.60 is: 131,465,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,030,935.40 : 199,546,403.10 = 87,643,978.60 : x
  2. Step 2: Convert to fraction form
    133,030,935.40/199,546,403.10 = 87,643,978.60/x
  3. Step 3: Cross multiply
    133,030,935.40x = 199,546,403.10 × 87,643,978.60
  4. Step 4: Simplify right side
    133,030,935.40x = 17,489,040,683,003,372
  5. Step 5: Solve for x
    x = 17,489,040,683,003,372/133,030,935.40
  6. Step 6: Final answer
    x = 131,465,967.90

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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.