Home / 28,081,670,885.20-42,128,741,902.20-9,448,640,837.20

Finding the Fourth Proportional to 28,081,670,885.20, 42,128,741,902.20 and 9,448,640,837.20

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Solution

The fourth proportional to 28,081,670,885.20, 42,128,741,902.20 and 9,448,640,837.20 is: 14,175,059,339.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,670,885.20 : 42,128,741,902.20 = 9,448,640,837.20 : x
  2. Step 2: Convert to fraction form
    28,081,670,885.20/42,128,741,902.20 = 9,448,640,837.20/x
  3. Step 3: Cross multiply
    28,081,670,885.20x = 42,128,741,902.20 × 9,448,640,837.20
  4. Step 4: Simplify right side
    28,081,670,885.20x = 398,059,351,156,985,757,696
  5. Step 5: Solve for x
    x = 398,059,351,156,985,757,696/28,081,670,885.20
  6. Step 6: Final answer
    x = 14,175,059,339.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.