Home / 30,902,324.70-42,647,363.54-20,430,146.53

Finding the Fourth Proportional to 30,902,324.70, 42,647,363.54 and 20,430,146.53

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Solution

The fourth proportional to 30,902,324.70, 42,647,363.54 and 20,430,146.53 is: 28,195,027.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902,324.70 : 42,647,363.54 = 20,430,146.53 : x
  2. Step 2: Convert to fraction form
    30,902,324.70/42,647,363.54 = 20,430,146.53/x
  3. Step 3: Cross multiply
    30,902,324.70x = 42,647,363.54 × 20,430,146.53
  4. Step 4: Simplify right side
    30,902,324.70x = 871,291,886,268,151
  5. Step 5: Solve for x
    x = 871,291,886,268,151/30,902,324.70
  6. Step 6: Final answer
    x = 28,195,027.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.