Home / 304,640,161.57-420,391,632.18-165,407,737.15

Finding the Fourth Proportional to 304,640,161.57, 420,391,632.18 and 165,407,737.15

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Solution

The fourth proportional to 304,640,161.57, 420,391,632.18 and 165,407,737.15 is: 228,256,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,640,161.57 : 420,391,632.18 = 165,407,737.15 : x
  2. Step 2: Convert to fraction form
    304,640,161.57/420,391,632.18 = 165,407,737.15/x
  3. Step 3: Cross multiply
    304,640,161.57x = 420,391,632.18 × 165,407,737.15
  4. Step 4: Simplify right side
    304,640,161.57x = 69,536,028,595,688,928
  5. Step 5: Solve for x
    x = 69,536,028,595,688,928/304,640,161.57
  6. Step 6: Final answer
    x = 228,256,275.33

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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.