Home / 811,092,788.82-1,216,153,319.55-258,156,377.94

Finding the Fourth Proportional to 811,092,788.82, 1,216,153,319.55 and 258,156,377.94

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Solution

The fourth proportional to 811,092,788.82, 1,216,153,319.55 and 258,156,377.94 is: 387,079,925.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,092,788.82 : 1,216,153,319.55 = 258,156,377.94 : x
  2. Step 2: Convert to fraction form
    811,092,788.82/1,216,153,319.55 = 258,156,377.94/x
  3. Step 3: Cross multiply
    811,092,788.82x = 1,216,153,319.55 × 258,156,377.94
  4. Step 4: Simplify right side
    811,092,788.82x = 313,957,735,994,735,360
  5. Step 5: Solve for x
    x = 313,957,735,994,735,360/811,092,788.82
  6. Step 6: Final answer
    x = 387,079,925.16

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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.