Home / 15,473,273,819.67-21,353,190,182.55-8,790,637,078.71

Finding the Fourth Proportional to 15,473,273,819.67, 21,353,190,182.55 and 8,790,637,078.71

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Solution

The fourth proportional to 15,473,273,819.67, 21,353,190,182.55 and 8,790,637,078.71 is: 12,131,120,249.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473,273,819.67 : 21,353,190,182.55 = 8,790,637,078.71 : x
  2. Step 2: Convert to fraction form
    15,473,273,819.67/21,353,190,182.55 = 8,790,637,078.71/x
  3. Step 3: Cross multiply
    15,473,273,819.67x = 21,353,190,182.55 × 8,790,637,078.71
  4. Step 4: Simplify right side
    15,473,273,819.67x = 187,708,145,367,470,342,144
  5. Step 5: Solve for x
    x = 187,708,145,367,470,342,144/15,473,273,819.67
  6. Step 6: Final answer
    x = 12,131,120,249.99

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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.