Home / 15,180,848.55-20,949,807.20-8,305,445.43

Finding the Fourth Proportional to 15,180,848.55, 20,949,807.20 and 8,305,445.43

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Solution

The fourth proportional to 15,180,848.55, 20,949,807.20 and 8,305,445.43 is: 11,461,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180,848.55 : 20,949,807.20 = 8,305,445.43 : x
  2. Step 2: Convert to fraction form
    15,180,848.55/20,949,807.20 = 8,305,445.43/x
  3. Step 3: Cross multiply
    15,180,848.55x = 20,949,807.20 × 8,305,445.43
  4. Step 4: Simplify right side
    15,180,848.55x = 173,997,480,427,093.88
  5. Step 5: Solve for x
    x = 173,997,480,427,093.88/15,180,848.55
  6. Step 6: Final answer
    x = 11,461,643.92

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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.