Home / 13,221,012.70-19,831,519.05-11,331,444.70

Finding the Fourth Proportional to 13,221,012.70, 19,831,519.05 and 11,331,444.70

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Solution

The fourth proportional to 13,221,012.70, 19,831,519.05 and 11,331,444.70 is: 16,997,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221,012.70 : 19,831,519.05 = 11,331,444.70 : x
  2. Step 2: Convert to fraction form
    13,221,012.70/19,831,519.05 = 11,331,444.70/x
  3. Step 3: Cross multiply
    13,221,012.70x = 19,831,519.05 × 11,331,444.70
  4. Step 4: Simplify right side
    13,221,012.70x = 224,719,761,432,071.53
  5. Step 5: Solve for x
    x = 224,719,761,432,071.53/13,221,012.70
  6. Step 6: Final answer
    x = 16,997,167.05

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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.