Home / 768,781,005,767.25-1,152,364,275,707.10-258,662,673,277.54

Finding the Fourth Proportional to 768,781,005,767.25, 1,152,364,275,707.10 and 258,662,673,277.54

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Solution

The fourth proportional to 768,781,005,767.25, 1,152,364,275,707.10 and 258,662,673,277.54 is: 387,722,409,773.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,781,005,767.25 : 1,152,364,275,707.10 = 258,662,673,277.54 : x
  2. Step 2: Convert to fraction form
    768,781,005,767.25/1,152,364,275,707.10 = 258,662,673,277.54/x
  3. Step 3: Cross multiply
    768,781,005,767.25x = 1,152,364,275,707.10 × 258,662,673,277.54
  4. Step 4: Simplify right side
    768,781,005,767.25x = 298,073,624,143,934,661,853,184
  5. Step 5: Solve for x
    x = 298,073,624,143,934,661,853,184/768,781,005,767.25
  6. Step 6: Final answer
    x = 387,722,409,773.19

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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.