Home / 129,721,850.20-179,016,150.54-70,984,513.12

Finding the Fourth Proportional to 129,721,850.20, 179,016,150.54 and 70,984,513.12

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Solution

The fourth proportional to 129,721,850.20, 179,016,150.54 and 70,984,513.12 is: 97,958,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,721,850.20 : 179,016,150.54 = 70,984,513.12 : x
  2. Step 2: Convert to fraction form
    129,721,850.20/179,016,150.54 = 70,984,513.12/x
  3. Step 3: Cross multiply
    129,721,850.20x = 179,016,150.54 × 70,984,513.12
  4. Step 4: Simplify right side
    129,721,850.20x = 12,707,374,286,698,526
  5. Step 5: Solve for x
    x = 12,707,374,286,698,526/129,721,850.20
  6. Step 6: Final answer
    x = 97,958,626.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.