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Finding the Fourth Proportional to 667,605,369.60, 921,350,563.56 and 370,343,452.59

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Solution

The fourth proportional to 667,605,369.60, 921,350,563.56 and 370,343,452.59 is: 511,104,560.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,605,369.60 : 921,350,563.56 = 370,343,452.59 : x
  2. Step 2: Convert to fraction form
    667,605,369.60/921,350,563.56 = 370,343,452.59/x
  3. Step 3: Cross multiply
    667,605,369.60x = 921,350,563.56 × 370,343,452.59
  4. Step 4: Simplify right side
    667,605,369.60x = 341,216,148,754,552,576
  5. Step 5: Solve for x
    x = 341,216,148,754,552,576/667,605,369.60
  6. Step 6: Final answer
    x = 511,104,560.11

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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.