Home / 31,470,120.18-43,114,218.50-30,290,628.75

Finding the Fourth Proportional to 31,470,120.18, 43,114,218.50 and 30,290,628.75

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Solution

The fourth proportional to 31,470,120.18, 43,114,218.50 and 30,290,628.75 is: 41,498,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470,120.18 : 43,114,218.50 = 30,290,628.75 : x
  2. Step 2: Convert to fraction form
    31,470,120.18/43,114,218.50 = 30,290,628.75/x
  3. Step 3: Cross multiply
    31,470,120.18x = 43,114,218.50 × 30,290,628.75
  4. Step 4: Simplify right side
    31,470,120.18x = 1,305,956,786,278,428.75
  5. Step 5: Solve for x
    x = 1,305,956,786,278,428.75/31,470,120.18
  6. Step 6: Final answer
    x = 41,498,309.47

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.