Home / 1,238,868,459-1,709,673,716.25-674,389,744.38

Finding the Fourth Proportional to 1,238,868,459, 1,709,673,716.25 and 674,389,744.38

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Solution

The fourth proportional to 1,238,868,459, 1,709,673,716.25 and 674,389,744.38 is: 930,677,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,868,459 : 1,709,673,716.25 = 674,389,744.38 : x
  2. Step 2: Convert to fraction form
    1,238,868,459/1,709,673,716.25 = 674,389,744.38/x
  3. Step 3: Cross multiply
    1,238,868,459x = 1,709,673,716.25 × 674,389,744.38
  4. Step 4: Simplify right side
    1,238,868,459x = 1,152,986,420,475,042,048
  5. Step 5: Solve for x
    x = 1,152,986,420,475,042,048/1,238,868,459
  6. Step 6: Final answer
    x = 930,677,032.01

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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.