Home / 3,978,767,001.66-5,490,715,532.40-2,170,318,281.36

Finding the Fourth Proportional to 3,978,767,001.66, 5,490,715,532.40 and 2,170,318,281.36

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Solution

The fourth proportional to 3,978,767,001.66, 5,490,715,532.40 and 2,170,318,281.36 is: 2,995,048,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,767,001.66 : 5,490,715,532.40 = 2,170,318,281.36 : x
  2. Step 2: Convert to fraction form
    3,978,767,001.66/5,490,715,532.40 = 2,170,318,281.36/x
  3. Step 3: Cross multiply
    3,978,767,001.66x = 5,490,715,532.40 × 2,170,318,281.36
  4. Step 4: Simplify right side
    3,978,767,001.66x = 11,916,600,297,715,025,920
  5. Step 5: Solve for x
    x = 11,916,600,297,715,025,920/3,978,767,001.66
  6. Step 6: Final answer
    x = 2,995,048,539.60

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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.