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Finding the Fourth Proportional to 12,852,668.40, 19,310,495.40 and 9,664,022.40

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Solution

The fourth proportional to 12,852,668.40, 19,310,495.40 and 9,664,022.40 is: 14,519,713.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852,668.40 : 19,310,495.40 = 9,664,022.40 : x
  2. Step 2: Convert to fraction form
    12,852,668.40/19,310,495.40 = 9,664,022.40/x
  3. Step 3: Cross multiply
    12,852,668.40x = 19,310,495.40 × 9,664,022.40
  4. Step 4: Simplify right side
    12,852,668.40x = 186,617,060,100,696.94
  5. Step 5: Solve for x
    x = 186,617,060,100,696.94/12,852,668.40
  6. Step 6: Final answer
    x = 14,519,713.28

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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.