Home / 890,382,921.75-1,228,875,790.25-494,033,600.66

Finding the Fourth Proportional to 890,382,921.75, 1,228,875,790.25 and 494,033,600.66

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Solution

The fourth proportional to 890,382,921.75, 1,228,875,790.25 and 494,033,600.66 is: 681,848,131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,382,921.75 : 1,228,875,790.25 = 494,033,600.66 : x
  2. Step 2: Convert to fraction form
    890,382,921.75/1,228,875,790.25 = 494,033,600.66/x
  3. Step 3: Cross multiply
    890,382,921.75x = 1,228,875,790.25 × 494,033,600.66
  4. Step 4: Simplify right side
    890,382,921.75x = 607,105,931,416,250,496
  5. Step 5: Solve for x
    x = 607,105,931,416,250,496/890,382,921.75
  6. Step 6: Final answer
    x = 681,848,131.39

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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.