Home / 15,014,679.54-20,720,368-8,139,210.82

Finding the Fourth Proportional to 15,014,679.54, 20,720,368 and 8,139,210.82

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Solution

The fourth proportional to 15,014,679.54, 20,720,368 and 8,139,210.82 is: 11,232,170.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014,679.54 : 20,720,368 = 8,139,210.82 : x
  2. Step 2: Convert to fraction form
    15,014,679.54/20,720,368 = 8,139,210.82/x
  3. Step 3: Cross multiply
    15,014,679.54x = 20,720,368 × 8,139,210.82
  4. Step 4: Simplify right side
    15,014,679.54x = 168,647,443,419,981.78
  5. Step 5: Solve for x
    x = 168,647,443,419,981.78/15,014,679.54
  6. Step 6: Final answer
    x = 11,232,170.69

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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.