Home / 13,137,191,992.98-18,128,383,768.14-7,711,947,886.20

Finding the Fourth Proportional to 13,137,191,992.98, 18,128,383,768.14 and 7,711,947,886.20

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Solution

The fourth proportional to 13,137,191,992.98, 18,128,383,768.14 and 7,711,947,886.20 is: 10,641,935,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137,191,992.98 : 18,128,383,768.14 = 7,711,947,886.20 : x
  2. Step 2: Convert to fraction form
    13,137,191,992.98/18,128,383,768.14 = 7,711,947,886.20/x
  3. Step 3: Cross multiply
    13,137,191,992.98x = 18,128,383,768.14 × 7,711,947,886.20
  4. Step 4: Simplify right side
    13,137,191,992.98x = 139,805,150,880,929,660,928
  5. Step 5: Solve for x
    x = 139,805,150,880,929,660,928/13,137,191,992.98
  6. Step 6: Final answer
    x = 10,641,935,579.20

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Double scale
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1.5x scale

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.