Home / 781,662,229.77-1,172,531,054.12-257,019,716.44

Finding the Fourth Proportional to 781,662,229.77, 1,172,531,054.12 and 257,019,716.44

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Solution

The fourth proportional to 781,662,229.77, 1,172,531,054.12 and 257,019,716.44 is: 385,541,973.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,662,229.77 : 1,172,531,054.12 = 257,019,716.44 : x
  2. Step 2: Convert to fraction form
    781,662,229.77/1,172,531,054.12 = 257,019,716.44/x
  3. Step 3: Cross multiply
    781,662,229.77x = 1,172,531,054.12 × 257,019,716.44
  4. Step 4: Simplify right side
    781,662,229.77x = 301,363,599,042,046,912
  5. Step 5: Solve for x
    x = 301,363,599,042,046,912/781,662,229.77
  6. Step 6: Final answer
    x = 385,541,973.97

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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.