Home / 7,238,280.69-9,988,801.13-3,975,306.66

Finding the Fourth Proportional to 7,238,280.69, 9,988,801.13 and 3,975,306.66

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Solution

The fourth proportional to 7,238,280.69, 9,988,801.13 and 3,975,306.66 is: 5,485,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238,280.69 : 9,988,801.13 = 3,975,306.66 : x
  2. Step 2: Convert to fraction form
    7,238,280.69/9,988,801.13 = 3,975,306.66/x
  3. Step 3: Cross multiply
    7,238,280.69x = 9,988,801.13 × 3,975,306.66
  4. Step 4: Simplify right side
    7,238,280.69x = 39,708,547,667,442.80
  5. Step 5: Solve for x
    x = 39,708,547,667,442.80/7,238,280.69
  6. Step 6: Final answer
    x = 5,485,908.79

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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.