Home / 21,246,474.70-31,869,712.05-19,475,004.70

Finding the Fourth Proportional to 21,246,474.70, 31,869,712.05 and 19,475,004.70

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Solution

The fourth proportional to 21,246,474.70, 31,869,712.05 and 19,475,004.70 is: 29,212,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246,474.70 : 31,869,712.05 = 19,475,004.70 : x
  2. Step 2: Convert to fraction form
    21,246,474.70/31,869,712.05 = 19,475,004.70/x
  3. Step 3: Cross multiply
    21,246,474.70x = 31,869,712.05 × 19,475,004.70
  4. Step 4: Simplify right side
    21,246,474.70x = 620,662,791,961,396.62
  5. Step 5: Solve for x
    x = 620,662,791,961,396.62/21,246,474.70
  6. Step 6: Final answer
    x = 29,212,507.05

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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.