Home / 15,087,975,111.53-20,820,467,494.50-8,313,414,579.47

Finding the Fourth Proportional to 15,087,975,111.53, 20,820,467,494.50 and 8,313,414,579.47

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Solution

The fourth proportional to 15,087,975,111.53, 20,820,467,494.50 and 8,313,414,579.47 is: 11,471,995,197.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,087,975,111.53 : 20,820,467,494.50 = 8,313,414,579.47 : x
  2. Step 2: Convert to fraction form
    15,087,975,111.53/20,820,467,494.50 = 8,313,414,579.47/x
  3. Step 3: Cross multiply
    15,087,975,111.53x = 20,820,467,494.50 × 8,313,414,579.47
  4. Step 4: Simplify right side
    15,087,975,111.53x = 173,089,178,020,167,876,608
  5. Step 5: Solve for x
    x = 173,089,178,020,167,876,608/15,087,975,111.53
  6. Step 6: Final answer
    x = 11,471,995,197.55

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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.