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Finding the Fourth Proportional to 1,978,759,575.09, 2,967,736,254.80 and 751,497,756.21

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Solution

The fourth proportional to 1,978,759,575.09, 2,967,736,254.80 and 751,497,756.21 is: 1,127,093,541.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,759,575.09 : 2,967,736,254.80 = 751,497,756.21 : x
  2. Step 2: Convert to fraction form
    1,978,759,575.09/2,967,736,254.80 = 751,497,756.21/x
  3. Step 3: Cross multiply
    1,978,759,575.09x = 2,967,736,254.80 × 751,497,756.21
  4. Step 4: Simplify right side
    1,978,759,575.09x = 2,230,247,136,501,511,424
  5. Step 5: Solve for x
    x = 2,230,247,136,501,511,424/1,978,759,575.09
  6. Step 6: Final answer
    x = 1,127,093,541.11

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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.