Home / 2,139,563,010.78-2,952,600,428.33-1,186,943,773.16

Finding the Fourth Proportional to 2,139,563,010.78, 2,952,600,428.33 and 1,186,943,773.16

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Solution

The fourth proportional to 2,139,563,010.78, 2,952,600,428.33 and 1,186,943,773.16 is: 1,637,984,333.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,563,010.78 : 2,952,600,428.33 = 1,186,943,773.16 : x
  2. Step 2: Convert to fraction form
    2,139,563,010.78/2,952,600,428.33 = 1,186,943,773.16/x
  3. Step 3: Cross multiply
    2,139,563,010.78x = 2,952,600,428.33 × 1,186,943,773.16
  4. Step 4: Simplify right side
    2,139,563,010.78x = 3,504,570,693,029,907,456
  5. Step 5: Solve for x
    x = 3,504,570,693,029,907,456/2,139,563,010.78
  6. Step 6: Final answer
    x = 1,637,984,333.89

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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.