Home / 130,177,993.24-179,633,756.86-77,245,579.45

Finding the Fourth Proportional to 130,177,993.24, 179,633,756.86 and 77,245,579.45

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Solution

The fourth proportional to 130,177,993.24, 179,633,756.86 and 77,245,579.45 is: 106,591,853.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,177,993.24 : 179,633,756.86 = 77,245,579.45 : x
  2. Step 2: Convert to fraction form
    130,177,993.24/179,633,756.86 = 77,245,579.45/x
  3. Step 3: Cross multiply
    130,177,993.24x = 179,633,756.86 × 77,245,579.45
  4. Step 4: Simplify right side
    130,177,993.24x = 13,875,913,637,431,114
  5. Step 5: Solve for x
    x = 13,875,913,637,431,114/130,177,993.24
  6. Step 6: Final answer
    x = 106,591,853.91

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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.