Home / 20,406,192.09-28,162,534.19-15,240,585.57

Finding the Fourth Proportional to 20,406,192.09, 28,162,534.19 and 15,240,585.57

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Solution

The fourth proportional to 20,406,192.09, 28,162,534.19 and 15,240,585.57 is: 21,033,493.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406,192.09 : 28,162,534.19 = 15,240,585.57 : x
  2. Step 2: Convert to fraction form
    20,406,192.09/28,162,534.19 = 15,240,585.57/x
  3. Step 3: Cross multiply
    20,406,192.09x = 28,162,534.19 × 15,240,585.57
  4. Step 4: Simplify right side
    20,406,192.09x = 429,213,512,190,745.69
  5. Step 5: Solve for x
    x = 429,213,512,190,745.69/20,406,192.09
  6. Step 6: Final answer
    x = 21,033,493.67

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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.