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Finding the Fourth Proportional to 1,978,759,576.59, 2,967,736,257.05 and 751,497,757.71

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Solution

The fourth proportional to 1,978,759,576.59, 2,967,736,257.05 and 751,497,757.71 is: 1,127,093,543.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,759,576.59 : 2,967,736,257.05 = 751,497,757.71 : x
  2. Step 2: Convert to fraction form
    1,978,759,576.59/2,967,736,257.05 = 751,497,757.71/x
  3. Step 3: Cross multiply
    1,978,759,576.59x = 2,967,736,257.05 × 751,497,757.71
  4. Step 4: Simplify right side
    1,978,759,576.59x = 2,230,247,142,643,985,920
  5. Step 5: Solve for x
    x = 2,230,247,142,643,985,920/1,978,759,576.59
  6. Step 6: Final answer
    x = 1,127,093,543.36

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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.