Home / 18,711,206.10-28,066,809.15-11,530,847.70

Finding the Fourth Proportional to 18,711,206.10, 28,066,809.15 and 11,530,847.70

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Solution

The fourth proportional to 18,711,206.10, 28,066,809.15 and 11,530,847.70 is: 17,296,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,206.10 : 28,066,809.15 = 11,530,847.70 : x
  2. Step 2: Convert to fraction form
    18,711,206.10/28,066,809.15 = 11,530,847.70/x
  3. Step 3: Cross multiply
    18,711,206.10x = 28,066,809.15 × 11,530,847.70
  4. Step 4: Simplify right side
    18,711,206.10x = 323,634,101,733,616.44
  5. Step 5: Solve for x
    x = 323,634,101,733,616.44/18,711,206.10
  6. Step 6: Final answer
    x = 17,296,271.55

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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.