Home / 21,870,142.70-32,805,214.05-13,756,810.10

Finding the Fourth Proportional to 21,870,142.70, 32,805,214.05 and 13,756,810.10

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Solution

The fourth proportional to 21,870,142.70, 32,805,214.05 and 13,756,810.10 is: 20,635,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,142.70 : 32,805,214.05 = 13,756,810.10 : x
  2. Step 2: Convert to fraction form
    21,870,142.70/32,805,214.05 = 13,756,810.10/x
  3. Step 3: Cross multiply
    21,870,142.70x = 32,805,214.05 × 13,756,810.10
  4. Step 4: Simplify right side
    21,870,142.70x = 451,295,099,975,701.88
  5. Step 5: Solve for x
    x = 451,295,099,975,701.88/21,870,142.70
  6. Step 6: Final answer
    x = 20,635,215.15

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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.