Home / 1,512,439,991.21-2,087,315,978.03-917,677,796.06

Finding the Fourth Proportional to 1,512,439,991.21, 2,087,315,978.03 and 917,677,796.06

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Solution

The fourth proportional to 1,512,439,991.21, 2,087,315,978.03 and 917,677,796.06 is: 1,266,485,637.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,439,991.21 : 2,087,315,978.03 = 917,677,796.06 : x
  2. Step 2: Convert to fraction form
    1,512,439,991.21/2,087,315,978.03 = 917,677,796.06/x
  3. Step 3: Cross multiply
    1,512,439,991.21x = 2,087,315,978.03 × 917,677,796.06
  4. Step 4: Simplify right side
    1,512,439,991.21x = 1,915,483,526,384,368,896
  5. Step 5: Solve for x
    x = 1,915,483,526,384,368,896/1,512,439,991.21
  6. Step 6: Final answer
    x = 1,266,485,637.46

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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.