Home / 276,042,721.22-380,937,147.05-156,965,322.13

Finding the Fourth Proportional to 276,042,721.22, 380,937,147.05 and 156,965,322.13

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Solution

The fourth proportional to 276,042,721.22, 380,937,147.05 and 156,965,322.13 is: 216,611,116.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,042,721.22 : 380,937,147.05 = 156,965,322.13 : x
  2. Step 2: Convert to fraction form
    276,042,721.22/380,937,147.05 = 156,965,322.13/x
  3. Step 3: Cross multiply
    276,042,721.22x = 380,937,147.05 × 156,965,322.13
  4. Step 4: Simplify right side
    276,042,721.22x = 59,793,921,999,130,112
  5. Step 5: Solve for x
    x = 59,793,921,999,130,112/276,042,721.22
  6. Step 6: Final answer
    x = 216,611,116.33

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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.