Home / 402,376,431.69-603,134,945.78-229,480,959.69

Finding the Fourth Proportional to 402,376,431.69, 603,134,945.78 and 229,480,959.69

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Solution

The fourth proportional to 402,376,431.69, 603,134,945.78 and 229,480,959.69 is: 343,976,374.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,376,431.69 : 603,134,945.78 = 229,480,959.69 : x
  2. Step 2: Convert to fraction form
    402,376,431.69/603,134,945.78 = 229,480,959.69/x
  3. Step 3: Cross multiply
    402,376,431.69x = 603,134,945.78 × 229,480,959.69
  4. Step 4: Simplify right side
    402,376,431.69x = 138,407,986,179,023,104
  5. Step 5: Solve for x
    x = 138,407,986,179,023,104/402,376,431.69
  6. Step 6: Final answer
    x = 343,976,374.55

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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.