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Finding the Fourth Proportional to 8,661,359.07, 12,986,133.71 and 4,393,297.35

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Solution

The fourth proportional to 8,661,359.07, 12,986,133.71 and 4,393,297.35 is: 6,586,950.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661,359.07 : 12,986,133.71 = 4,393,297.35 : x
  2. Step 2: Convert to fraction form
    8,661,359.07/12,986,133.71 = 4,393,297.35/x
  3. Step 3: Cross multiply
    8,661,359.07x = 12,986,133.71 × 4,393,297.35
  4. Step 4: Simplify right side
    8,661,359.07x = 57,051,946,792,922.18
  5. Step 5: Solve for x
    x = 57,051,946,792,922.18/8,661,359.07
  6. Step 6: Final answer
    x = 6,586,950.89

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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.