Home / 40,820,014.80-61,146,041.40-20,636,629.20

Finding the Fourth Proportional to 40,820,014.80, 61,146,041.40 and 20,636,629.20

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Solution

The fourth proportional to 40,820,014.80, 61,146,041.40 and 20,636,629.20 is: 30,912,487.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,820,014.80 : 61,146,041.40 = 20,636,629.20 : x
  2. Step 2: Convert to fraction form
    40,820,014.80/61,146,041.40 = 20,636,629.20/x
  3. Step 3: Cross multiply
    40,820,014.80x = 61,146,041.40 × 20,636,629.20
  4. Step 4: Simplify right side
    40,820,014.80x = 1,261,848,183,419,648.75
  5. Step 5: Solve for x
    x = 1,261,848,183,419,648.75/40,820,014.80
  6. Step 6: Final answer
    x = 30,912,487.16

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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.