Home / 538,255,385.76-742,792,716.96-290,736,739.52

Finding the Fourth Proportional to 538,255,385.76, 742,792,716.96 and 290,736,739.52

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Solution

The fourth proportional to 538,255,385.76, 742,792,716.96 and 290,736,739.52 is: 401,216,854.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,255,385.76 : 742,792,716.96 = 290,736,739.52 : x
  2. Step 2: Convert to fraction form
    538,255,385.76/742,792,716.96 = 290,736,739.52/x
  3. Step 3: Cross multiply
    538,255,385.76x = 742,792,716.96 × 290,736,739.52
  4. Step 4: Simplify right side
    538,255,385.76x = 215,957,132,668,152,608
  5. Step 5: Solve for x
    x = 215,957,132,668,152,608/538,255,385.76
  6. Step 6: Final answer
    x = 401,216,854.27

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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.