Home / 12,528,013,919.49-17,284,428,268.79-7,101,967,804.65

Finding the Fourth Proportional to 12,528,013,919.49, 17,284,428,268.79 and 7,101,967,804.65

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Solution

The fourth proportional to 12,528,013,919.49, 17,284,428,268.79 and 7,101,967,804.65 is: 9,798,317,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,013,919.49 : 17,284,428,268.79 = 7,101,967,804.65 : x
  2. Step 2: Convert to fraction form
    12,528,013,919.49/17,284,428,268.79 = 7,101,967,804.65/x
  3. Step 3: Cross multiply
    12,528,013,919.49x = 17,284,428,268.79 × 7,101,967,804.65
  4. Step 4: Simplify right side
    12,528,013,919.49x = 122,753,453,086,693,392,384
  5. Step 5: Solve for x
    x = 122,753,453,086,693,392,384/12,528,013,919.49
  6. Step 6: Final answer
    x = 9,798,317,105.61

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1.5x scale

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.