Home / 18,604,235.60-27,839,998.20-12,897,688.40

Finding the Fourth Proportional to 18,604,235.60, 27,839,998.20 and 12,897,688.40

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Solution

The fourth proportional to 18,604,235.60, 27,839,998.20 and 12,897,688.40 is: 19,300,530.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604,235.60 : 27,839,998.20 = 12,897,688.40 : x
  2. Step 2: Convert to fraction form
    18,604,235.60/27,839,998.20 = 12,897,688.40/x
  3. Step 3: Cross multiply
    18,604,235.60x = 27,839,998.20 × 12,897,688.40
  4. Step 4: Simplify right side
    18,604,235.60x = 359,071,621,840,160.88
  5. Step 5: Solve for x
    x = 359,071,621,840,160.88/18,604,235.60
  6. Step 6: Final answer
    x = 19,300,530.78

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1.5x scale

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.