Home / 290,313,982.70-435,187,538.85-259,702,981.10

Finding the Fourth Proportional to 290,313,982.70, 435,187,538.85 and 259,702,981.10

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Solution

The fourth proportional to 290,313,982.70, 435,187,538.85 and 259,702,981.10 is: 389,300,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,313,982.70 : 435,187,538.85 = 259,702,981.10 : x
  2. Step 2: Convert to fraction form
    290,313,982.70/435,187,538.85 = 259,702,981.10/x
  3. Step 3: Cross multiply
    290,313,982.70x = 435,187,538.85 × 259,702,981.10
  4. Step 4: Simplify right side
    290,313,982.70x = 113,019,501,176,917,072
  5. Step 5: Solve for x
    x = 113,019,501,176,917,072/290,313,982.70
  6. Step 6: Final answer
    x = 389,300,922.15

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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.