Home / 1,025,568,223.80-1,538,315,010.90-411,985,836.60

Finding the Fourth Proportional to 1,025,568,223.80, 1,538,315,010.90 and 411,985,836.60

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Solution

The fourth proportional to 1,025,568,223.80, 1,538,315,010.90 and 411,985,836.60 is: 617,963,760.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,568,223.80 : 1,538,315,010.90 = 411,985,836.60 : x
  2. Step 2: Convert to fraction form
    1,025,568,223.80/1,538,315,010.90 = 411,985,836.60/x
  3. Step 3: Cross multiply
    1,025,568,223.80x = 1,538,315,010.90 × 411,985,836.60
  4. Step 4: Simplify right side
    1,025,568,223.80x = 633,763,996,719,974,656
  5. Step 5: Solve for x
    x = 633,763,996,719,974,656/1,025,568,223.80
  6. Step 6: Final answer
    x = 617,963,760.98

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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.