Home / 18,912,081.60-28,389,117.60-11,731,723.20

Finding the Fourth Proportional to 18,912,081.60, 28,389,117.60 and 11,731,723.20

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Solution

The fourth proportional to 18,912,081.60, 28,389,117.60 and 11,731,723.20 is: 17,610,608.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912,081.60 : 28,389,117.60 = 11,731,723.20 : x
  2. Step 2: Convert to fraction form
    18,912,081.60/28,389,117.60 = 11,731,723.20/x
  3. Step 3: Cross multiply
    18,912,081.60x = 28,389,117.60 × 11,731,723.20
  4. Step 4: Simplify right side
    18,912,081.60x = 333,053,269,575,448.31
  5. Step 5: Solve for x
    x = 333,053,269,575,448.31/18,912,081.60
  6. Step 6: Final answer
    x = 17,610,608.74

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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.