Home / 213,297,430.93-319,665,228.13-90,323,584.30

Finding the Fourth Proportional to 213,297,430.93, 319,665,228.13 and 90,323,584.30

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Solution

The fourth proportional to 213,297,430.93, 319,665,228.13 and 90,323,584.30 is: 135,366,417.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,297,430.93 : 319,665,228.13 = 90,323,584.30 : x
  2. Step 2: Convert to fraction form
    213,297,430.93/319,665,228.13 = 90,323,584.30/x
  3. Step 3: Cross multiply
    213,297,430.93x = 319,665,228.13 × 90,323,584.30
  4. Step 4: Simplify right side
    213,297,430.93x = 28,873,309,180,778,784
  5. Step 5: Solve for x
    x = 28,873,309,180,778,784/213,297,430.93
  6. Step 6: Final answer
    x = 135,366,417.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.