Home / 785,159,578.43-1,083,562,828.47-450,629,426.35

Finding the Fourth Proportional to 785,159,578.43, 1,083,562,828.47 and 450,629,426.35

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Solution

The fourth proportional to 785,159,578.43, 1,083,562,828.47 and 450,629,426.35 is: 621,893,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,159,578.43 : 1,083,562,828.47 = 450,629,426.35 : x
  2. Step 2: Convert to fraction form
    785,159,578.43/1,083,562,828.47 = 450,629,426.35/x
  3. Step 3: Cross multiply
    785,159,578.43x = 1,083,562,828.47 × 450,629,426.35
  4. Step 4: Simplify right side
    785,159,578.43x = 488,285,295,808,974,016
  5. Step 5: Solve for x
    x = 488,285,295,808,974,016/785,159,578.43
  6. Step 6: Final answer
    x = 621,893,063.81

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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.