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Finding the Fourth Proportional to 2,643,991,352.64, 3,965,843,504.64 and 803,600,540.80

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Solution

The fourth proportional to 2,643,991,352.64, 3,965,843,504.64 and 803,600,540.80 is: 1,205,357,189.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643,991,352.64 : 3,965,843,504.64 = 803,600,540.80 : x
  2. Step 2: Convert to fraction form
    2,643,991,352.64/3,965,843,504.64 = 803,600,540.80/x
  3. Step 3: Cross multiply
    2,643,991,352.64x = 3,965,843,504.64 × 803,600,540.80
  4. Step 4: Simplify right side
    2,643,991,352.64x = 3,186,953,985,056,870,912
  5. Step 5: Solve for x
    x = 3,186,953,985,056,870,912/2,643,991,352.64
  6. Step 6: Final answer
    x = 1,205,357,189.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.