Home / 18,711,235.60-28,066,853.40-11,530,877.20

Finding the Fourth Proportional to 18,711,235.60, 28,066,853.40 and 11,530,877.20

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Solution

The fourth proportional to 18,711,235.60, 28,066,853.40 and 11,530,877.20 is: 17,296,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,235.60 : 28,066,853.40 = 11,530,877.20 : x
  2. Step 2: Convert to fraction form
    18,711,235.60/28,066,853.40 = 11,530,877.20/x
  3. Step 3: Cross multiply
    18,711,235.60x = 28,066,853.40 × 11,530,877.20
  4. Step 4: Simplify right side
    18,711,235.60x = 323,635,439,945,802.44
  5. Step 5: Solve for x
    x = 323,635,439,945,802.44/18,711,235.60
  6. Step 6: Final answer
    x = 17,296,315.80

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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.