Home / 870,526,428.88-1,201,234,991.80-494,063,286.16

Finding the Fourth Proportional to 870,526,428.88, 1,201,234,991.80 and 494,063,286.16

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Solution

The fourth proportional to 870,526,428.88, 1,201,234,991.80 and 494,063,286.16 is: 681,755,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,526,428.88 : 1,201,234,991.80 = 494,063,286.16 : x
  2. Step 2: Convert to fraction form
    870,526,428.88/1,201,234,991.80 = 494,063,286.16/x
  3. Step 3: Cross multiply
    870,526,428.88x = 1,201,234,991.80 × 494,063,286.16
  4. Step 4: Simplify right side
    870,526,428.88x = 593,486,107,499,088,640
  5. Step 5: Solve for x
    x = 593,486,107,499,088,640/870,526,428.88
  6. Step 6: Final answer
    x = 681,755,415.82

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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.