Home / 525,833,710.20-725,667,721.65-287,673,369.71

Finding the Fourth Proportional to 525,833,710.20, 725,667,721.65 and 287,673,369.71

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Solution

The fourth proportional to 525,833,710.20, 725,667,721.65 and 287,673,369.71 is: 396,998,660.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,833,710.20 : 725,667,721.65 = 287,673,369.71 : x
  2. Step 2: Convert to fraction form
    525,833,710.20/725,667,721.65 = 287,673,369.71/x
  3. Step 3: Cross multiply
    525,833,710.20x = 725,667,721.65 × 287,673,369.71
  4. Step 4: Simplify right side
    525,833,710.20x = 208,755,278,773,205,472
  5. Step 5: Solve for x
    x = 208,755,278,773,205,472/525,833,710.20
  6. Step 6: Final answer
    x = 396,998,660.84

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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.