Home / 15,185,845.60-20,956,467.12-8,310,330.40

Finding the Fourth Proportional to 15,185,845.60, 20,956,467.12 and 8,310,330.40

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Solution

The fourth proportional to 15,185,845.60, 20,956,467.12 and 8,310,330.40 is: 11,468,256.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185,845.60 : 20,956,467.12 = 8,310,330.40 : x
  2. Step 2: Convert to fraction form
    15,185,845.60/20,956,467.12 = 8,310,330.40/x
  3. Step 3: Cross multiply
    15,185,845.60x = 20,956,467.12 × 8,310,330.40
  4. Step 4: Simplify right side
    15,185,845.60x = 174,155,165,783,936.47
  5. Step 5: Solve for x
    x = 174,155,165,783,936.47/15,185,845.60
  6. Step 6: Final answer
    x = 11,468,256.06

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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.