Home / 12,528,035.20-18,792,052.80-6,543,625.60

Finding the Fourth Proportional to 12,528,035.20, 18,792,052.80 and 6,543,625.60

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Solution

The fourth proportional to 12,528,035.20, 18,792,052.80 and 6,543,625.60 is: 9,815,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,035.20 : 18,792,052.80 = 6,543,625.60 : x
  2. Step 2: Convert to fraction form
    12,528,035.20/18,792,052.80 = 6,543,625.60/x
  3. Step 3: Cross multiply
    12,528,035.20x = 18,792,052.80 × 6,543,625.60
  4. Step 4: Simplify right side
    12,528,035.20x = 122,968,157,778,631.67
  5. Step 5: Solve for x
    x = 122,968,157,778,631.67/12,528,035.20
  6. Step 6: Final answer
    x = 9,815,438.40

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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.