Home / 3,938,359,800.28-5,434,952,899.09-2,129,871,669.52

Finding the Fourth Proportional to 3,938,359,800.28, 5,434,952,899.09 and 2,129,871,669.52

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Solution

The fourth proportional to 3,938,359,800.28, 5,434,952,899.09 and 2,129,871,669.52 is: 2,939,231,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,359,800.28 : 5,434,952,899.09 = 2,129,871,669.52 : x
  2. Step 2: Convert to fraction form
    3,938,359,800.28/5,434,952,899.09 = 2,129,871,669.52/x
  3. Step 3: Cross multiply
    3,938,359,800.28x = 5,434,952,899.09 × 2,129,871,669.52
  4. Step 4: Simplify right side
    3,938,359,800.28x = 11,575,752,204,942,843,904
  5. Step 5: Solve for x
    x = 11,575,752,204,942,843,904/3,938,359,800.28
  6. Step 6: Final answer
    x = 2,939,231,759.40

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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.