Home / 312,849,938.80-432,091,233.24-206,036,743.78

Finding the Fourth Proportional to 312,849,938.80, 432,091,233.24 and 206,036,743.78

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Solution

The fourth proportional to 312,849,938.80, 432,091,233.24 and 206,036,743.78 is: 284,566,687.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,849,938.80 : 432,091,233.24 = 206,036,743.78 : x
  2. Step 2: Convert to fraction form
    312,849,938.80/432,091,233.24 = 206,036,743.78/x
  3. Step 3: Cross multiply
    312,849,938.80x = 432,091,233.24 × 206,036,743.78
  4. Step 4: Simplify right side
    312,849,938.80x = 89,026,670,712,654,096
  5. Step 5: Solve for x
    x = 89,026,670,712,654,096/312,849,938.80
  6. Step 6: Final answer
    x = 284,566,687.32

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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.