Home / 78,524,016.57-117,786,054.76-78,410,545.90

Finding the Fourth Proportional to 78,524,016.57, 117,786,054.76 and 78,410,545.90

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Solution

The fourth proportional to 78,524,016.57, 117,786,054.76 and 78,410,545.90 is: 117,615,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,524,016.57 : 117,786,054.76 = 78,410,545.90 : x
  2. Step 2: Convert to fraction form
    78,524,016.57/117,786,054.76 = 78,410,545.90/x
  3. Step 3: Cross multiply
    78,524,016.57x = 117,786,054.76 × 78,410,545.90
  4. Step 4: Simplify right side
    78,524,016.57x = 9,235,668,852,648,400
  5. Step 5: Solve for x
    x = 9,235,668,852,648,400/78,524,016.57
  6. Step 6: Final answer
    x = 117,615,848.71

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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.