Home / 538,255,407.72-742,792,747.32-290,736,761.52

Finding the Fourth Proportional to 538,255,407.72, 742,792,747.32 and 290,736,761.52

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Solution

The fourth proportional to 538,255,407.72, 742,792,747.32 and 290,736,761.52 is: 401,216,884.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,255,407.72 : 742,792,747.32 = 290,736,761.52 : x
  2. Step 2: Convert to fraction form
    538,255,407.72/742,792,747.32 = 290,736,761.52/x
  3. Step 3: Cross multiply
    538,255,407.72x = 742,792,747.32 × 290,736,761.52
  4. Step 4: Simplify right side
    538,255,407.72x = 215,957,157,836,360,448
  5. Step 5: Solve for x
    x = 215,957,157,836,360,448/538,255,407.72
  6. Step 6: Final answer
    x = 401,216,884.66

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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.