Home / 805,231,511.80-1,111,196,977.26-487,879,650.29

Finding the Fourth Proportional to 805,231,511.80, 1,111,196,977.26 and 487,879,650.29

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Solution

The fourth proportional to 805,231,511.80, 1,111,196,977.26 and 487,879,650.29 is: 673,260,279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,231,511.80 : 1,111,196,977.26 = 487,879,650.29 : x
  2. Step 2: Convert to fraction form
    805,231,511.80/1,111,196,977.26 = 487,879,650.29/x
  3. Step 3: Cross multiply
    805,231,511.80x = 1,111,196,977.26 × 487,879,650.29
  4. Step 4: Simplify right side
    805,231,511.80x = 542,130,392,668,913,920
  5. Step 5: Solve for x
    x = 542,130,392,668,913,920/805,231,511.80
  6. Step 6: Final answer
    x = 673,260,279.47

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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.