Home / 213,022,830.80-319,534,246.20-155,627,202.80

Finding the Fourth Proportional to 213,022,830.80, 319,534,246.20 and 155,627,202.80

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Solution

The fourth proportional to 213,022,830.80, 319,534,246.20 and 155,627,202.80 is: 233,440,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,022,830.80 : 319,534,246.20 = 155,627,202.80 : x
  2. Step 2: Convert to fraction form
    213,022,830.80/319,534,246.20 = 155,627,202.80/x
  3. Step 3: Cross multiply
    213,022,830.80x = 319,534,246.20 × 155,627,202.80
  4. Step 4: Simplify right side
    213,022,830.80x = 49,728,220,934,912,528
  5. Step 5: Solve for x
    x = 49,728,220,934,912,528/213,022,830.80
  6. Step 6: Final answer
    x = 233,440,804.20

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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.