Home / 72,396,149.43-99,812,912.07-46,890,189.93

Finding the Fourth Proportional to 72,396,149.43, 99,812,912.07 and 46,890,189.93

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Solution

The fourth proportional to 72,396,149.43, 99,812,912.07 and 46,890,189.93 is: 64,647,725.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,396,149.43 : 99,812,912.07 = 46,890,189.93 : x
  2. Step 2: Convert to fraction form
    72,396,149.43/99,812,912.07 = 46,890,189.93/x
  3. Step 3: Cross multiply
    72,396,149.43x = 99,812,912.07 × 46,890,189.93
  4. Step 4: Simplify right side
    72,396,149.43x = 4,680,246,404,428,689
  5. Step 5: Solve for x
    x = 4,680,246,404,428,689/72,396,149.43
  6. Step 6: Final answer
    x = 64,647,725.62

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Why These Related Problems?

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