Home / 12,785,243.76-19,178,849.79-4,265,566.56

Finding the Fourth Proportional to 12,785,243.76, 19,178,849.79 and 4,265,566.56

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Solution

The fourth proportional to 12,785,243.76, 19,178,849.79 and 4,265,566.56 is: 6,398,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785,243.76 : 19,178,849.79 = 4,265,566.56 : x
  2. Step 2: Convert to fraction form
    12,785,243.76/19,178,849.79 = 4,265,566.56/x
  3. Step 3: Cross multiply
    12,785,243.76x = 19,178,849.79 × 4,265,566.56
  4. Step 4: Simplify right side
    12,785,243.76x = 81,808,660,323,487.02
  5. Step 5: Solve for x
    x = 81,808,660,323,487.02/12,785,243.76
  6. Step 6: Final answer
    x = 6,398,678.18

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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.