Home / 20,609,657.87-28,440,217.73-11,441,710.13

Finding the Fourth Proportional to 20,609,657.87, 28,440,217.73 and 11,441,710.13

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Solution

The fourth proportional to 20,609,657.87, 28,440,217.73 and 11,441,710.13 is: 15,788,943.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609,657.87 : 28,440,217.73 = 11,441,710.13 : x
  2. Step 2: Convert to fraction form
    20,609,657.87/28,440,217.73 = 11,441,710.13/x
  3. Step 3: Cross multiply
    20,609,657.87x = 28,440,217.73 × 11,441,710.13
  4. Step 4: Simplify right side
    20,609,657.87x = 325,404,727,187,149.81
  5. Step 5: Solve for x
    x = 325,404,727,187,149.81/20,609,657.87
  6. Step 6: Final answer
    x = 15,788,943.67

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1.5x scale

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.