Home / 10,785,969.60-16,178,954.40-7,951,617.60

Finding the Fourth Proportional to 10,785,969.60, 16,178,954.40 and 7,951,617.60

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Solution

The fourth proportional to 10,785,969.60, 16,178,954.40 and 7,951,617.60 is: 11,927,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785,969.60 : 16,178,954.40 = 7,951,617.60 : x
  2. Step 2: Convert to fraction form
    10,785,969.60/16,178,954.40 = 7,951,617.60/x
  3. Step 3: Cross multiply
    10,785,969.60x = 16,178,954.40 × 7,951,617.60
  4. Step 4: Simplify right side
    10,785,969.60x = 128,648,858,556,637.44
  5. Step 5: Solve for x
    x = 128,648,858,556,637.44/10,785,969.60
  6. Step 6: Final answer
    x = 11,927,426.40

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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.