Home / 28,570,468.34-39,427,029.50-15,517,820.67

Finding the Fourth Proportional to 28,570,468.34, 39,427,029.50 and 15,517,820.67

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Solution

The fourth proportional to 28,570,468.34, 39,427,029.50 and 15,517,820.67 is: 21,414,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570,468.34 : 39,427,029.50 = 15,517,820.67 : x
  2. Step 2: Convert to fraction form
    28,570,468.34/39,427,029.50 = 15,517,820.67/x
  3. Step 3: Cross multiply
    28,570,468.34x = 39,427,029.50 × 15,517,820.67
  4. Step 4: Simplify right side
    28,570,468.34x = 611,821,573,352,778.12
  5. Step 5: Solve for x
    x = 611,821,573,352,778.12/28,570,468.34
  6. Step 6: Final answer
    x = 21,414,474.77

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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.