Home / 39,876,161,564.82-55,028,455,454.94-21,811,519,759.16

Finding the Fourth Proportional to 39,876,161,564.82, 55,028,455,454.94 and 21,811,519,759.16

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Solution

The fourth proportional to 39,876,161,564.82, 55,028,455,454.94 and 21,811,519,759.16 is: 30,099,543,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,876,161,564.82 : 55,028,455,454.94 = 21,811,519,759.16 : x
  2. Step 2: Convert to fraction form
    39,876,161,564.82/55,028,455,454.94 = 21,811,519,759.16/x
  3. Step 3: Cross multiply
    39,876,161,564.82x = 55,028,455,454.94 × 21,811,519,759.16
  4. Step 4: Simplify right side
    39,876,161,564.82x = 1,200,254,243,471,479,799,808
  5. Step 5: Solve for x
    x = 1,200,254,243,471,479,799,808/39,876,161,564.82
  6. Step 6: Final answer
    x = 30,099,543,094.70

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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.