Home / 20,739,657.40-31,109,486.10-19,412,553.40

Finding the Fourth Proportional to 20,739,657.40, 31,109,486.10 and 19,412,553.40

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Solution

The fourth proportional to 20,739,657.40, 31,109,486.10 and 19,412,553.40 is: 29,118,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,657.40 : 31,109,486.10 = 19,412,553.40 : x
  2. Step 2: Convert to fraction form
    20,739,657.40/31,109,486.10 = 19,412,553.40/x
  3. Step 3: Cross multiply
    20,739,657.40x = 31,109,486.10 × 19,412,553.40
  4. Step 4: Simplify right side
    20,739,657.40x = 603,914,560,162,807.75
  5. Step 5: Solve for x
    x = 603,914,560,162,807.75/20,739,657.40
  6. Step 6: Final answer
    x = 29,118,830.10

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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.