Home / 290,207,227.86-400,502,820.69-218,551,859.46

Finding the Fourth Proportional to 290,207,227.86, 400,502,820.69 and 218,551,859.46

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Solution

The fourth proportional to 290,207,227.86, 400,502,820.69 and 218,551,859.46 is: 301,614,252.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,207,227.86 : 400,502,820.69 = 218,551,859.46 : x
  2. Step 2: Convert to fraction form
    290,207,227.86/400,502,820.69 = 218,551,859.46/x
  3. Step 3: Cross multiply
    290,207,227.86x = 400,502,820.69 × 218,551,859.46
  4. Step 4: Simplify right side
    290,207,227.86x = 87,530,636,180,774,464
  5. Step 5: Solve for x
    x = 87,530,636,180,774,464/290,207,227.86
  6. Step 6: Final answer
    x = 301,614,252.77

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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.