Home / 12,842,009.60-19,149,830.08-12,726,890.24

Finding the Fourth Proportional to 12,842,009.60, 19,149,830.08 and 12,726,890.24

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Solution

The fourth proportional to 12,842,009.60, 19,149,830.08 and 12,726,890.24 is: 18,978,165.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842,009.60 : 19,149,830.08 = 12,726,890.24 : x
  2. Step 2: Convert to fraction form
    12,842,009.60/19,149,830.08 = 12,726,890.24/x
  3. Step 3: Cross multiply
    12,842,009.60x = 19,149,830.08 × 12,726,890.24
  4. Step 4: Simplify right side
    12,842,009.60x = 243,717,785,542,810.41
  5. Step 5: Solve for x
    x = 243,717,785,542,810.41/12,842,009.60
  6. Step 6: Final answer
    x = 18,978,165.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.