Home / 21,663,684,478.49-29,883,463,759.01-13,511,334,406.26

Finding the Fourth Proportional to 21,663,684,478.49, 29,883,463,759.01 and 13,511,334,406.26

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Solution

The fourth proportional to 21,663,684,478.49, 29,883,463,759.01 and 13,511,334,406.26 is: 18,637,894,789.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,663,684,478.49 : 29,883,463,759.01 = 13,511,334,406.26 : x
  2. Step 2: Convert to fraction form
    21,663,684,478.49/29,883,463,759.01 = 13,511,334,406.26/x
  3. Step 3: Cross multiply
    21,663,684,478.49x = 29,883,463,759.01 × 13,511,334,406.26
  4. Step 4: Simplify right side
    21,663,684,478.49x = 403,765,472,065,268,088,832
  5. Step 5: Solve for x
    x = 403,765,472,065,268,088,832/21,663,684,478.49
  6. Step 6: Final answer
    x = 18,637,894,789.61

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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.