Home / 201,786,465,787.49-302,679,989,991.91-82,403,790,317.66

Finding the Fourth Proportional to 201,786,465,787.49, 302,679,989,991.91 and 82,403,790,317.66

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Solution

The fourth proportional to 201,786,465,787.49, 302,679,989,991.91 and 82,403,790,317.66 is: 123,605,804,439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,786,465,787.49 : 302,679,989,991.91 = 82,403,790,317.66 : x
  2. Step 2: Convert to fraction form
    201,786,465,787.49/302,679,989,991.91 = 82,403,790,317.66/x
  3. Step 3: Cross multiply
    201,786,465,787.49x = 302,679,989,991.91 × 82,403,790,317.66
  4. Step 4: Simplify right side
    201,786,465,787.49x = 24,941,978,428,644,779,884,544
  5. Step 5: Solve for x
    x = 24,941,978,428,644,779,884,544/201,786,465,787.49
  6. Step 6: Final answer
    x = 123,605,804,439.39

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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.