Home / 57,469,931.53-86,153,644.54-21,069,839.78

Finding the Fourth Proportional to 57,469,931.53, 86,153,644.54 and 21,069,839.78

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Solution

The fourth proportional to 57,469,931.53, 86,153,644.54 and 21,069,839.78 is: 31,585,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,469,931.53 : 86,153,644.54 = 21,069,839.78 : x
  2. Step 2: Convert to fraction form
    57,469,931.53/86,153,644.54 = 21,069,839.78/x
  3. Step 3: Cross multiply
    57,469,931.53x = 86,153,644.54 × 21,069,839.78
  4. Step 4: Simplify right side
    57,469,931.53x = 1,815,243,486,437,428.75
  5. Step 5: Solve for x
    x = 1,815,243,486,437,428.75/57,469,931.53
  6. Step 6: Final answer
    x = 31,585,969.19

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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.