Home / 138,339,149.04-207,545,066.51-49,716,667.40

Finding the Fourth Proportional to 138,339,149.04, 207,545,066.51 and 49,716,667.40

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Solution

The fourth proportional to 138,339,149.04, 207,545,066.51 and 49,716,667.40 is: 74,588,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,339,149.04 : 207,545,066.51 = 49,716,667.40 : x
  2. Step 2: Convert to fraction form
    138,339,149.04/207,545,066.51 = 49,716,667.40/x
  3. Step 3: Cross multiply
    138,339,149.04x = 207,545,066.51 × 49,716,667.40
  4. Step 4: Simplify right side
    138,339,149.04x = 10,318,449,040,902,240
  5. Step 5: Solve for x
    x = 10,318,449,040,902,240/138,339,149.04
  6. Step 6: Final answer
    x = 74,588,062.11

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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.