Home / 280,164,257.88-386,622,640.07-154,721,761.64

Finding the Fourth Proportional to 280,164,257.88, 386,622,640.07 and 154,721,761.64

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Solution

The fourth proportional to 280,164,257.88, 386,622,640.07 and 154,721,761.64 is: 213,513,802.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,164,257.88 : 386,622,640.07 = 154,721,761.64 : x
  2. Step 2: Convert to fraction form
    280,164,257.88/386,622,640.07 = 154,721,761.64/x
  3. Step 3: Cross multiply
    280,164,257.88x = 386,622,640.07 × 154,721,761.64
  4. Step 4: Simplify right side
    280,164,257.88x = 59,818,935,958,831,328
  5. Step 5: Solve for x
    x = 59,818,935,958,831,328/280,164,257.88
  6. Step 6: Final answer
    x = 213,513,802.27

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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.