Home / 20,186,117.80-30,243,091.20-12,284,486.80

Finding the Fourth Proportional to 20,186,117.80, 30,243,091.20 and 12,284,486.80

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Solution

The fourth proportional to 20,186,117.80, 30,243,091.20 and 12,284,486.80 is: 18,404,769.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,117.80 : 30,243,091.20 = 12,284,486.80 : x
  2. Step 2: Convert to fraction form
    20,186,117.80/30,243,091.20 = 12,284,486.80/x
  3. Step 3: Cross multiply
    20,186,117.80x = 30,243,091.20 × 12,284,486.80
  4. Step 4: Simplify right side
    20,186,117.80x = 371,520,854,637,596.19
  5. Step 5: Solve for x
    x = 371,520,854,637,596.19/20,186,117.80
  6. Step 6: Final answer
    x = 18,404,769.97

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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.