Home / 7,875,877-10,868,645.91-4,391,174.38

Finding the Fourth Proportional to 7,875,877, 10,868,645.91 and 4,391,174.38

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Solution

The fourth proportional to 7,875,877, 10,868,645.91 and 4,391,174.38 is: 6,059,784.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875,877 : 10,868,645.91 = 4,391,174.38 : x
  2. Step 2: Convert to fraction form
    7,875,877/10,868,645.91 = 4,391,174.38/x
  3. Step 3: Cross multiply
    7,875,877x = 10,868,645.91 × 4,391,174.38
  4. Step 4: Simplify right side
    7,875,877x = 47,726,119,465,283.79
  5. Step 5: Solve for x
    x = 47,726,119,465,283.79/7,875,877
  6. Step 6: Final answer
    x = 6,059,784.77

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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.