Home / 12,894,137,989.70-19,341,206,984.55-11,862,181,919.30

Finding the Fourth Proportional to 12,894,137,989.70, 19,341,206,984.55 and 11,862,181,919.30

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Solution

The fourth proportional to 12,894,137,989.70, 19,341,206,984.55 and 11,862,181,919.30 is: 17,793,272,878.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894,137,989.70 : 19,341,206,984.55 = 11,862,181,919.30 : x
  2. Step 2: Convert to fraction form
    12,894,137,989.70/19,341,206,984.55 = 11,862,181,919.30/x
  3. Step 3: Cross multiply
    12,894,137,989.70x = 19,341,206,984.55 × 11,862,181,919.30
  4. Step 4: Simplify right side
    12,894,137,989.70x = 229,428,915,789,567,852,544
  5. Step 5: Solve for x
    x = 229,428,915,789,567,852,544/12,894,137,989.70
  6. Step 6: Final answer
    x = 17,793,272,878.95

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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.