Home / 13,137,192,003.12-18,128,383,782.18-7,711,947,896.34

Finding the Fourth Proportional to 13,137,192,003.12, 18,128,383,782.18 and 7,711,947,896.34

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Solution

The fourth proportional to 13,137,192,003.12, 18,128,383,782.18 and 7,711,947,896.34 is: 10,641,935,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137,192,003.12 : 18,128,383,782.18 = 7,711,947,896.34 : x
  2. Step 2: Convert to fraction form
    13,137,192,003.12/18,128,383,782.18 = 7,711,947,896.34/x
  3. Step 3: Cross multiply
    13,137,192,003.12x = 18,128,383,782.18 × 7,711,947,896.34
  4. Step 4: Simplify right side
    13,137,192,003.12x = 139,805,151,173,027,233,792
  5. Step 5: Solve for x
    x = 139,805,151,173,027,233,792/13,137,192,003.12
  6. Step 6: Final answer
    x = 10,641,935,593.22

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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.