Home / 538,254,979.70-742,792,169.96-290,736,333.95

Finding the Fourth Proportional to 538,254,979.70, 742,792,169.96 and 290,736,333.95

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Solution

The fourth proportional to 538,254,979.70, 742,792,169.96 and 290,736,333.95 is: 401,216,301.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,254,979.70 : 742,792,169.96 = 290,736,333.95 : x
  2. Step 2: Convert to fraction form
    538,254,979.70/742,792,169.96 = 290,736,333.95/x
  3. Step 3: Cross multiply
    538,254,979.70x = 742,792,169.96 × 290,736,333.95
  4. Step 4: Simplify right side
    538,254,979.70x = 215,956,672,375,768,096
  5. Step 5: Solve for x
    x = 215,956,672,375,768,096/538,254,979.70
  6. Step 6: Final answer
    x = 401,216,301.79

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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.