Home / 12,940,912.40-19,402,037.40-7,262,877.20

Finding the Fourth Proportional to 12,940,912.40, 19,402,037.40 and 7,262,877.20

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Solution

The fourth proportional to 12,940,912.40, 19,402,037.40 and 7,262,877.20 is: 10,889,078.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940,912.40 : 19,402,037.40 = 7,262,877.20 : x
  2. Step 2: Convert to fraction form
    12,940,912.40/19,402,037.40 = 7,262,877.20/x
  3. Step 3: Cross multiply
    12,940,912.40x = 19,402,037.40 × 7,262,877.20
  4. Step 4: Simplify right side
    12,940,912.40x = 140,914,615,066,007.28
  5. Step 5: Solve for x
    x = 140,914,615,066,007.28/12,940,912.40
  6. Step 6: Final answer
    x = 10,889,078.82

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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.