Home / 18,887,081,472.60-28,330,622,208.90-7,839,911,117.40

Finding the Fourth Proportional to 18,887,081,472.60, 28,330,622,208.90 and 7,839,911,117.40

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Solution

The fourth proportional to 18,887,081,472.60, 28,330,622,208.90 and 7,839,911,117.40 is: 11,759,866,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,081,472.60 : 28,330,622,208.90 = 7,839,911,117.40 : x
  2. Step 2: Convert to fraction form
    18,887,081,472.60/28,330,622,208.90 = 7,839,911,117.40/x
  3. Step 3: Cross multiply
    18,887,081,472.60x = 28,330,622,208.90 × 7,839,911,117.40
  4. Step 4: Simplify right side
    18,887,081,472.60x = 222,109,560,018,414,469,120
  5. Step 5: Solve for x
    x = 222,109,560,018,414,469,120/18,887,081,472.60
  6. Step 6: Final answer
    x = 11,759,866,676.10

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1.5x scale

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.