Home / 74,268,143.40-111,189,638.70-65,765,087.40

Finding the Fourth Proportional to 74,268,143.40, 111,189,638.70 and 65,765,087.40

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Solution

The fourth proportional to 74,268,143.40, 111,189,638.70 and 65,765,087.40 is: 98,459,392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,268,143.40 : 111,189,638.70 = 65,765,087.40 : x
  2. Step 2: Convert to fraction form
    74,268,143.40/111,189,638.70 = 65,765,087.40/x
  3. Step 3: Cross multiply
    74,268,143.40x = 111,189,638.70 × 65,765,087.40
  4. Step 4: Simplify right side
    74,268,143.40x = 7,312,396,307,079,922
  5. Step 5: Solve for x
    x = 7,312,396,307,079,922/74,268,143.40
  6. Step 6: Final answer
    x = 98,459,392.85

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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.