Home / 12,528,077.15-18,792,115.73-8,874,912.35

Finding the Fourth Proportional to 12,528,077.15, 18,792,115.73 and 8,874,912.35

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Solution

The fourth proportional to 12,528,077.15, 18,792,115.73 and 8,874,912.35 is: 13,312,368.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,077.15 : 18,792,115.73 = 8,874,912.35 : x
  2. Step 2: Convert to fraction form
    12,528,077.15/18,792,115.73 = 8,874,912.35/x
  3. Step 3: Cross multiply
    12,528,077.15x = 18,792,115.73 × 8,874,912.35
  4. Step 4: Simplify right side
    12,528,077.15x = 166,778,379,974,806.25
  5. Step 5: Solve for x
    x = 166,778,379,974,806.25/12,528,077.15
  6. Step 6: Final answer
    x = 13,312,368.53

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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.