Home / 20,620,381.20-30,857,088.60-17,953,990.80

Finding the Fourth Proportional to 20,620,381.20, 30,857,088.60 and 17,953,990.80

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Solution

The fourth proportional to 20,620,381.20, 30,857,088.60 and 17,953,990.80 is: 26,867,005.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,381.20 : 30,857,088.60 = 17,953,990.80 : x
  2. Step 2: Convert to fraction form
    20,620,381.20/30,857,088.60 = 17,953,990.80/x
  3. Step 3: Cross multiply
    20,620,381.20x = 30,857,088.60 × 17,953,990.80
  4. Step 4: Simplify right side
    20,620,381.20x = 554,007,884,839,184.94
  5. Step 5: Solve for x
    x = 554,007,884,839,184.94/20,620,381.20
  6. Step 6: Final answer
    x = 26,867,005.00

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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.