Home / 157,826,315.39-217,807,906.45-87,260,619.87

Finding the Fourth Proportional to 157,826,315.39, 217,807,906.45 and 87,260,619.87

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Solution

The fourth proportional to 157,826,315.39, 217,807,906.45 and 87,260,619.87 is: 120,423,852.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,826,315.39 : 217,807,906.45 = 87,260,619.87 : x
  2. Step 2: Convert to fraction form
    157,826,315.39/217,807,906.45 = 87,260,619.87/x
  3. Step 3: Cross multiply
    157,826,315.39x = 217,807,906.45 × 87,260,619.87
  4. Step 4: Simplify right side
    157,826,315.39x = 19,006,052,928,324,928
  5. Step 5: Solve for x
    x = 19,006,052,928,324,928/157,826,315.39
  6. Step 6: Final answer
    x = 120,423,852.52

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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.