Home / 20,212,102.80-30,319,466.40-10,646,164.80

Finding the Fourth Proportional to 20,212,102.80, 30,319,466.40 and 10,646,164.80

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Solution

The fourth proportional to 20,212,102.80, 30,319,466.40 and 10,646,164.80 is: 15,969,938.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,102.80 : 30,319,466.40 = 10,646,164.80 : x
  2. Step 2: Convert to fraction form
    20,212,102.80/30,319,466.40 = 10,646,164.80/x
  3. Step 3: Cross multiply
    20,212,102.80x = 30,319,466.40 × 10,646,164.80
  4. Step 4: Simplify right side
    20,212,102.80x = 322,786,035,942,462.75
  5. Step 5: Solve for x
    x = 322,786,035,942,462.75/20,212,102.80
  6. Step 6: Final answer
    x = 15,969,938.36

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1.5x scale

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.