Home / 15,317,985,907,891-21,138,663,824,510-8,474,639,367,797.40

Finding the Fourth Proportional to 15,317,985,907,891, 21,138,663,824,510 and 8,474,639,367,797.40

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Solution

The fourth proportional to 15,317,985,907,891, 21,138,663,824,510 and 8,474,639,367,797.40 is: 11,694,915,617,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317,985,907,891 : 21,138,663,824,510 = 8,474,639,367,797.40 : x
  2. Step 2: Convert to fraction form
    15,317,985,907,891/21,138,663,824,510 = 8,474,639,367,797.40/x
  3. Step 3: Cross multiply
    15,317,985,907,891x = 21,138,663,824,510 × 8,474,639,367,797.40
  4. Step 4: Simplify right side
    15,317,985,907,891x = 179,142,552,629,827,189,845,524,480
  5. Step 5: Solve for x
    x = 179,142,552,629,827,189,845,524,480/15,317,985,907,891
  6. Step 6: Final answer
    x = 11,694,915,617,956.18

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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.