Home / 497,051,274.92-685,778,732.76-288,165,721.76

Finding the Fourth Proportional to 497,051,274.92, 685,778,732.76 and 288,165,721.76

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Solution

The fourth proportional to 497,051,274.92, 685,778,732.76 and 288,165,721.76 is: 397,580,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,051,274.92 : 685,778,732.76 = 288,165,721.76 : x
  2. Step 2: Convert to fraction form
    497,051,274.92/685,778,732.76 = 288,165,721.76/x
  3. Step 3: Cross multiply
    497,051,274.92x = 685,778,732.76 × 288,165,721.76
  4. Step 4: Simplify right side
    497,051,274.92x = 197,617,923,493,443,552
  5. Step 5: Solve for x
    x = 197,617,923,493,443,552/497,051,274.92
  6. Step 6: Final answer
    x = 397,580,558.52

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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.