Home / 13,193,463,611.28-18,206,850,434.76-7,171,610,728.26

Finding the Fourth Proportional to 13,193,463,611.28, 18,206,850,434.76 and 7,171,610,728.26

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Solution

The fourth proportional to 13,193,463,611.28, 18,206,850,434.76 and 7,171,610,728.26 is: 9,896,752,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193,463,611.28 : 18,206,850,434.76 = 7,171,610,728.26 : x
  2. Step 2: Convert to fraction form
    13,193,463,611.28/18,206,850,434.76 = 7,171,610,728.26/x
  3. Step 3: Cross multiply
    13,193,463,611.28x = 18,206,850,434.76 × 7,171,610,728.26
  4. Step 4: Simplify right side
    13,193,463,611.28x = 130,572,443,905,750,056,960
  5. Step 5: Solve for x
    x = 130,572,443,905,750,056,960/13,193,463,611.28
  6. Step 6: Final answer
    x = 9,896,752,494.48

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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.