Home / 40,820,006.80-61,146,029.40-20,636,621.20

Finding the Fourth Proportional to 40,820,006.80, 61,146,029.40 and 20,636,621.20

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Solution

The fourth proportional to 40,820,006.80, 61,146,029.40 and 20,636,621.20 is: 30,912,475.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,820,006.80 : 61,146,029.40 = 20,636,621.20 : x
  2. Step 2: Convert to fraction form
    40,820,006.80/61,146,029.40 = 20,636,621.20/x
  3. Step 3: Cross multiply
    40,820,006.80x = 61,146,029.40 × 20,636,621.20
  4. Step 4: Simplify right side
    40,820,006.80x = 1,261,847,446,611,863.25
  5. Step 5: Solve for x
    x = 1,261,847,446,611,863.25/40,820,006.80
  6. Step 6: Final answer
    x = 30,912,475.17

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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.