Home / 12,521,112.80-18,781,669.20-9,683,261.60

Finding the Fourth Proportional to 12,521,112.80, 18,781,669.20 and 9,683,261.60

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Solution

The fourth proportional to 12,521,112.80, 18,781,669.20 and 9,683,261.60 is: 14,524,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521,112.80 : 18,781,669.20 = 9,683,261.60 : x
  2. Step 2: Convert to fraction form
    12,521,112.80/18,781,669.20 = 9,683,261.60/x
  3. Step 3: Cross multiply
    12,521,112.80x = 18,781,669.20 × 9,683,261.60
  4. Step 4: Simplify right side
    12,521,112.80x = 181,867,816,148,262.72
  5. Step 5: Solve for x
    x = 181,867,816,148,262.72/12,521,112.80
  6. Step 6: Final answer
    x = 14,524,892.40

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1.5x scale

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.