Home / 12,528,051.20-18,792,076.80-7,489,203.20

Finding the Fourth Proportional to 12,528,051.20, 18,792,076.80 and 7,489,203.20

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Solution

The fourth proportional to 12,528,051.20, 18,792,076.80 and 7,489,203.20 is: 11,233,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,051.20 : 18,792,076.80 = 7,489,203.20 : x
  2. Step 2: Convert to fraction form
    12,528,051.20/18,792,076.80 = 7,489,203.20/x
  3. Step 3: Cross multiply
    12,528,051.20x = 18,792,076.80 × 7,489,203.20
  4. Step 4: Simplify right side
    12,528,051.20x = 140,737,681,705,205.78
  5. Step 5: Solve for x
    x = 140,737,681,705,205.78/12,528,051.20
  6. Step 6: Final answer
    x = 11,233,804.80

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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.