Home / 12,145,851.40-18,207,113.10-7,023,022.60

Finding the Fourth Proportional to 12,145,851.40, 18,207,113.10 and 7,023,022.60

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Solution

The fourth proportional to 12,145,851.40, 18,207,113.10 and 7,023,022.60 is: 10,527,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,851.40 : 18,207,113.10 = 7,023,022.60 : x
  2. Step 2: Convert to fraction form
    12,145,851.40/18,207,113.10 = 7,023,022.60/x
  3. Step 3: Cross multiply
    12,145,851.40x = 18,207,113.10 × 7,023,022.60
  4. Step 4: Simplify right side
    12,145,851.40x = 127,868,966,782,056.06
  5. Step 5: Solve for x
    x = 127,868,966,782,056.06/12,145,851.40
  6. Step 6: Final answer
    x = 10,527,789.50

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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.