Home / 70,629,998.90-105,944,998.35-66,661,906.10

Finding the Fourth Proportional to 70,629,998.90, 105,944,998.35 and 66,661,906.10

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Solution

The fourth proportional to 70,629,998.90, 105,944,998.35 and 66,661,906.10 is: 99,992,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,629,998.90 : 105,944,998.35 = 66,661,906.10 : x
  2. Step 2: Convert to fraction form
    70,629,998.90/105,944,998.35 = 66,661,906.10/x
  3. Step 3: Cross multiply
    70,629,998.90x = 105,944,998.35 × 66,661,906.10
  4. Step 4: Simplify right side
    70,629,998.90x = 7,062,495,531,772,355
  5. Step 5: Solve for x
    x = 7,062,495,531,772,355/70,629,998.90
  6. Step 6: Final answer
    x = 99,992,859.15

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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.