Home / 20,135,429.70-30,190,783.77-7,825,019.10

Finding the Fourth Proportional to 20,135,429.70, 30,190,783.77 and 7,825,019.10

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Solution

The fourth proportional to 20,135,429.70, 30,190,783.77 and 7,825,019.10 is: 11,732,725.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135,429.70 : 30,190,783.77 = 7,825,019.10 : x
  2. Step 2: Convert to fraction form
    20,135,429.70/30,190,783.77 = 7,825,019.10/x
  3. Step 3: Cross multiply
    20,135,429.70x = 30,190,783.77 × 7,825,019.10
  4. Step 4: Simplify right side
    20,135,429.70x = 236,243,459,644,220
  5. Step 5: Solve for x
    x = 236,243,459,644,220/20,135,429.70
  6. Step 6: Final answer
    x = 11,732,725.01

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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.