Home / 802,766,436.31-1,108,292,639.61-505,663,348.96

Finding the Fourth Proportional to 802,766,436.31, 1,108,292,639.61 and 505,663,348.96

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Solution

The fourth proportional to 802,766,436.31, 1,108,292,639.61 and 505,663,348.96 is: 698,114,597.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,766,436.31 : 1,108,292,639.61 = 505,663,348.96 : x
  2. Step 2: Convert to fraction form
    802,766,436.31/1,108,292,639.61 = 505,663,348.96/x
  3. Step 3: Cross multiply
    802,766,436.31x = 1,108,292,639.61 × 505,663,348.96
  4. Step 4: Simplify right side
    802,766,436.31x = 560,422,967,772,910,848
  5. Step 5: Solve for x
    x = 560,422,967,772,910,848/802,766,436.31
  6. Step 6: Final answer
    x = 698,114,597.75

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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.