Home / 13,721,375.76-18,938,939.31-9,318,551.10

Finding the Fourth Proportional to 13,721,375.76, 18,938,939.31 and 9,318,551.10

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Solution

The fourth proportional to 13,721,375.76, 18,938,939.31 and 9,318,551.10 is: 12,861,937.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721,375.76 : 18,938,939.31 = 9,318,551.10 : x
  2. Step 2: Convert to fraction form
    13,721,375.76/18,938,939.31 = 9,318,551.10/x
  3. Step 3: Cross multiply
    13,721,375.76x = 18,938,939.31 × 9,318,551.10
  4. Step 4: Simplify right side
    13,721,375.76x = 176,483,473,740,033.72
  5. Step 5: Solve for x
    x = 176,483,473,740,033.72/13,721,375.76
  6. Step 6: Final answer
    x = 12,861,937.23

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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.