Home / 18,666,188.28-28,029,659.76-11,523,129.12

Finding the Fourth Proportional to 18,666,188.28, 28,029,659.76 and 11,523,129.12

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Solution

The fourth proportional to 18,666,188.28, 28,029,659.76 and 11,523,129.12 is: 17,303,446.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666,188.28 : 28,029,659.76 = 11,523,129.12 : x
  2. Step 2: Convert to fraction form
    18,666,188.28/28,029,659.76 = 11,523,129.12/x
  3. Step 3: Cross multiply
    18,666,188.28x = 28,029,659.76 × 11,523,129.12
  4. Step 4: Simplify right side
    18,666,188.28x = 322,989,388,604,148.19
  5. Step 5: Solve for x
    x = 322,989,388,604,148.19/18,666,188.28
  6. Step 6: Final answer
    x = 17,303,446.41

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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.