Home / 28,339,933,951.08-39,108,876,432.55-15,479,582,111.85

Finding the Fourth Proportional to 28,339,933,951.08, 39,108,876,432.55 and 15,479,582,111.85

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Solution

The fourth proportional to 28,339,933,951.08, 39,108,876,432.55 and 15,479,582,111.85 is: 21,361,696,364.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339,933,951.08 : 39,108,876,432.55 = 15,479,582,111.85 : x
  2. Step 2: Convert to fraction form
    28,339,933,951.08/39,108,876,432.55 = 15,479,582,111.85/x
  3. Step 3: Cross multiply
    28,339,933,951.08x = 39,108,876,432.55 × 15,479,582,111.85
  4. Step 4: Simplify right side
    28,339,933,951.08x = 605,389,064,039,805,747,200
  5. Step 5: Solve for x
    x = 605,389,064,039,805,747,200/28,339,933,951.08
  6. Step 6: Final answer
    x = 21,361,696,364.04

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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.