Home / 12,652,956.40-18,979,434.60-12,065,090.80

Finding the Fourth Proportional to 12,652,956.40, 18,979,434.60 and 12,065,090.80

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Solution

The fourth proportional to 12,652,956.40, 18,979,434.60 and 12,065,090.80 is: 18,097,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652,956.40 : 18,979,434.60 = 12,065,090.80 : x
  2. Step 2: Convert to fraction form
    12,652,956.40/18,979,434.60 = 12,065,090.80/x
  3. Step 3: Cross multiply
    12,652,956.40x = 18,979,434.60 × 12,065,090.80
  4. Step 4: Simplify right side
    12,652,956.40x = 228,988,601,781,661.72
  5. Step 5: Solve for x
    x = 228,988,601,781,661.72/12,652,956.40
  6. Step 6: Final answer
    x = 18,097,636.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.