Home / 1,143,813,389.54-1,578,375,851.82-641,925,242.33

Finding the Fourth Proportional to 1,143,813,389.54, 1,578,375,851.82 and 641,925,242.33

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Solution

The fourth proportional to 1,143,813,389.54, 1,578,375,851.82 and 641,925,242.33 is: 885,808,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,813,389.54 : 1,578,375,851.82 = 641,925,242.33 : x
  2. Step 2: Convert to fraction form
    1,143,813,389.54/1,578,375,851.82 = 641,925,242.33/x
  3. Step 3: Cross multiply
    1,143,813,389.54x = 1,578,375,851.82 × 641,925,242.33
  4. Step 4: Simplify right side
    1,143,813,389.54x = 1,013,199,301,159,481,856
  5. Step 5: Solve for x
    x = 1,013,199,301,159,481,856/1,143,813,389.54
  6. Step 6: Final answer
    x = 885,808,218.74

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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.