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Finding the Fourth Proportional to 9,792,140.80, 14,673,868.80 and 8,781,260.80

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Solution

The fourth proportional to 9,792,140.80, 14,673,868.80 and 8,781,260.80 is: 13,159,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792,140.80 : 14,673,868.80 = 8,781,260.80 : x
  2. Step 2: Convert to fraction form
    9,792,140.80/14,673,868.80 = 8,781,260.80/x
  3. Step 3: Cross multiply
    9,792,140.80x = 14,673,868.80 × 8,781,260.80
  4. Step 4: Simplify right side
    9,792,140.80x = 128,855,068,877,783.06
  5. Step 5: Solve for x
    x = 128,855,068,877,783.06/9,792,140.80
  6. Step 6: Final answer
    x = 13,159,029.42

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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.