Home / 20,791,619.70-31,160,192.22-9,987,424.26

Finding the Fourth Proportional to 20,791,619.70, 31,160,192.22 and 9,987,424.26

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Solution

The fourth proportional to 20,791,619.70, 31,160,192.22 and 9,987,424.26 is: 14,968,052.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791,619.70 : 31,160,192.22 = 9,987,424.26 : x
  2. Step 2: Convert to fraction form
    20,791,619.70/31,160,192.22 = 9,987,424.26/x
  3. Step 3: Cross multiply
    20,791,619.70x = 31,160,192.22 × 9,987,424.26
  4. Step 4: Simplify right side
    20,791,619.70x = 311,210,059,724,291.25
  5. Step 5: Solve for x
    x = 311,210,059,724,291.25/20,791,619.70
  6. Step 6: Final answer
    x = 14,968,052.72

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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.