Home / 14,914,948.65-20,570,968.76-9,689,640.41

Finding the Fourth Proportional to 14,914,948.65, 20,570,968.76 and 9,689,640.41

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Solution

The fourth proportional to 14,914,948.65, 20,570,968.76 and 9,689,640.41 is: 13,364,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,914,948.65 : 20,570,968.76 = 9,689,640.41 : x
  2. Step 2: Convert to fraction form
    14,914,948.65/20,570,968.76 = 9,689,640.41/x
  3. Step 3: Cross multiply
    14,914,948.65x = 20,570,968.76 × 9,689,640.41
  4. Step 4: Simplify right side
    14,914,948.65x = 199,325,290,169,743.62
  5. Step 5: Solve for x
    x = 199,325,290,169,743.62/14,914,948.65
  6. Step 6: Final answer
    x = 13,364,128.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.