Home / 15,915,067,962.26-21,962,862,068.43-8,681,273,081.21

Finding the Fourth Proportional to 15,915,067,962.26, 21,962,862,068.43 and 8,681,273,081.21

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Solution

The fourth proportional to 15,915,067,962.26, 21,962,862,068.43 and 8,681,273,081.21 is: 11,980,194,097.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915,067,962.26 : 21,962,862,068.43 = 8,681,273,081.21 : x
  2. Step 2: Convert to fraction form
    15,915,067,962.26/21,962,862,068.43 = 8,681,273,081.21/x
  3. Step 3: Cross multiply
    15,915,067,962.26x = 21,962,862,068.43 × 8,681,273,081.21
  4. Step 4: Simplify right side
    15,915,067,962.26x = 190,665,603,260,836,315,136
  5. Step 5: Solve for x
    x = 190,665,603,260,836,315,136/15,915,067,962.26
  6. Step 6: Final answer
    x = 11,980,194,097.38

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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.