Home / 15,685,995,205.26-21,647,439,176.22-8,821,551,833.70

Finding the Fourth Proportional to 15,685,995,205.26, 21,647,439,176.22 and 8,821,551,833.70

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Solution

The fourth proportional to 15,685,995,205.26, 21,647,439,176.22 and 8,821,551,833.70 is: 12,174,172,200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685,995,205.26 : 21,647,439,176.22 = 8,821,551,833.70 : x
  2. Step 2: Convert to fraction form
    15,685,995,205.26/21,647,439,176.22 = 8,821,551,833.70/x
  3. Step 3: Cross multiply
    15,685,995,205.26x = 21,647,439,176.22 × 8,821,551,833.70
  4. Step 4: Simplify right side
    15,685,995,205.26x = 190,964,006,759,892,779,008
  5. Step 5: Solve for x
    x = 190,964,006,759,892,779,008/15,685,995,205.26
  6. Step 6: Final answer
    x = 12,174,172,200.17

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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.