Home / 78,567,379.36-108,413,158.51-45,527,028.09

Finding the Fourth Proportional to 78,567,379.36, 108,413,158.51 and 45,527,028.09

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Solution

The fourth proportional to 78,567,379.36, 108,413,158.51 and 45,527,028.09 is: 62,821,605.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,567,379.36 : 108,413,158.51 = 45,527,028.09 : x
  2. Step 2: Convert to fraction form
    78,567,379.36/108,413,158.51 = 45,527,028.09/x
  3. Step 3: Cross multiply
    78,567,379.36x = 108,413,158.51 × 45,527,028.09
  4. Step 4: Simplify right side
    78,567,379.36x = 4,935,728,912,814,259
  5. Step 5: Solve for x
    x = 4,935,728,912,814,259/78,567,379.36
  6. Step 6: Final answer
    x = 62,821,605.52

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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.