Home / 1,167,458,793.66-1,611,129,273.11-638,845,059.78

Finding the Fourth Proportional to 1,167,458,793.66, 1,611,129,273.11 and 638,845,059.78

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Solution

The fourth proportional to 1,167,458,793.66, 1,611,129,273.11 and 638,845,059.78 is: 881,625,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,458,793.66 : 1,611,129,273.11 = 638,845,059.78 : x
  2. Step 2: Convert to fraction form
    1,167,458,793.66/1,611,129,273.11 = 638,845,059.78/x
  3. Step 3: Cross multiply
    1,167,458,793.66x = 1,611,129,273.11 × 638,845,059.78
  4. Step 4: Simplify right side
    1,167,458,793.66x = 1,029,261,976,793,265,792
  5. Step 5: Solve for x
    x = 1,029,261,976,793,265,792/1,167,458,793.66
  6. Step 6: Final answer
    x = 881,625,957.49

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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.