Home / 12,243,043.40-18,348,818.70-7,445,640.20

Finding the Fourth Proportional to 12,243,043.40, 18,348,818.70 and 7,445,640.20

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Solution

The fourth proportional to 12,243,043.40, 18,348,818.70 and 7,445,640.20 is: 11,158,884.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243,043.40 : 18,348,818.70 = 7,445,640.20 : x
  2. Step 2: Convert to fraction form
    12,243,043.40/18,348,818.70 = 7,445,640.20/x
  3. Step 3: Cross multiply
    12,243,043.40x = 18,348,818.70 × 7,445,640.20
  4. Step 4: Simplify right side
    12,243,043.40x = 136,618,702,135,231.73
  5. Step 5: Solve for x
    x = 136,618,702,135,231.73/12,243,043.40
  6. Step 6: Final answer
    x = 11,158,884.08

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1.5x scale

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.