Home / 13,171,930.10-19,720,570.35-11,828,237.30

Finding the Fourth Proportional to 13,171,930.10, 19,720,570.35 and 11,828,237.30

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Solution

The fourth proportional to 13,171,930.10, 19,720,570.35 and 11,828,237.30 is: 17,708,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171,930.10 : 19,720,570.35 = 11,828,237.30 : x
  2. Step 2: Convert to fraction form
    13,171,930.10/19,720,570.35 = 11,828,237.30/x
  3. Step 3: Cross multiply
    13,171,930.10x = 19,720,570.35 × 11,828,237.30
  4. Step 4: Simplify right side
    13,171,930.10x = 233,259,585,791,144.09
  5. Step 5: Solve for x
    x = 233,259,585,791,144.09/13,171,930.10
  6. Step 6: Final answer
    x = 17,708,838.72

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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.