Home / 130,177,612.82-179,633,231.34-77,245,197.68

Finding the Fourth Proportional to 130,177,612.82, 179,633,231.34 and 77,245,197.68

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Solution

The fourth proportional to 130,177,612.82, 179,633,231.34 and 77,245,197.68 is: 106,591,326.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,177,612.82 : 179,633,231.34 = 77,245,197.68 : x
  2. Step 2: Convert to fraction form
    130,177,612.82/179,633,231.34 = 77,245,197.68/x
  3. Step 3: Cross multiply
    130,177,612.82x = 179,633,231.34 × 77,245,197.68
  4. Step 4: Simplify right side
    130,177,612.82x = 13,875,804,464,755,472
  5. Step 5: Solve for x
    x = 13,875,804,464,755,472/130,177,612.82
  6. Step 6: Final answer
    x = 106,591,326.76

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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.