Home / 30,562,260.66-42,172,087.88-20,660,687.93

Finding the Fourth Proportional to 30,562,260.66, 42,172,087.88 and 20,660,687.93

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Solution

The fourth proportional to 30,562,260.66, 42,172,087.88 and 20,660,687.93 is: 28,509,158.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,562,260.66 : 42,172,087.88 = 20,660,687.93 : x
  2. Step 2: Convert to fraction form
    30,562,260.66/42,172,087.88 = 20,660,687.93/x
  3. Step 3: Cross multiply
    30,562,260.66x = 42,172,087.88 × 20,660,687.93
  4. Step 4: Simplify right side
    30,562,260.66x = 871,304,347,202,297.25
  5. Step 5: Solve for x
    x = 871,304,347,202,297.25/30,562,260.66
  6. Step 6: Final answer
    x = 28,509,158.96

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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.