Home / 15,004,445.67-20,706,234.42-8,128,927.73

Finding the Fourth Proportional to 15,004,445.67, 20,706,234.42 and 8,128,927.73

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Solution

The fourth proportional to 15,004,445.67, 20,706,234.42 and 8,128,927.73 is: 11,217,974.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,445.67 : 20,706,234.42 = 8,128,927.73 : x
  2. Step 2: Convert to fraction form
    15,004,445.67/20,706,234.42 = 8,128,927.73/x
  3. Step 3: Cross multiply
    15,004,445.67x = 20,706,234.42 × 8,128,927.73
  4. Step 4: Simplify right side
    15,004,445.67x = 168,319,483,242,867.50
  5. Step 5: Solve for x
    x = 168,319,483,242,867.50/15,004,445.67
  6. Step 6: Final answer
    x = 11,217,974.12

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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.