Home / 20,788,720.04-31,175,313.78-7,137,990.92

Finding the Fourth Proportional to 20,788,720.04, 31,175,313.78 and 7,137,990.92

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Solution

The fourth proportional to 20,788,720.04, 31,175,313.78 and 7,137,990.92 is: 10,704,319.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,788,720.04 : 31,175,313.78 = 7,137,990.92 : x
  2. Step 2: Convert to fraction form
    20,788,720.04/31,175,313.78 = 7,137,990.92/x
  3. Step 3: Cross multiply
    20,788,720.04x = 31,175,313.78 × 7,137,990.92
  4. Step 4: Simplify right side
    20,788,720.04x = 222,529,106,689,790.88
  5. Step 5: Solve for x
    x = 222,529,106,689,790.88/20,788,720.04
  6. Step 6: Final answer
    x = 10,704,319.76

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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.