Home / 18,784,848.05-28,157,605.95-7,861,296.27

Finding the Fourth Proportional to 18,784,848.05, 28,157,605.95 and 7,861,296.27

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Solution

The fourth proportional to 18,784,848.05, 28,157,605.95 and 7,861,296.27 is: 11,783,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784,848.05 : 28,157,605.95 = 7,861,296.27 : x
  2. Step 2: Convert to fraction form
    18,784,848.05/28,157,605.95 = 7,861,296.27/x
  3. Step 3: Cross multiply
    18,784,848.05x = 28,157,605.95 × 7,861,296.27
  4. Step 4: Simplify right side
    18,784,848.05x = 221,355,282,622,079.28
  5. Step 5: Solve for x
    x = 221,355,282,622,079.28/18,784,848.05
  6. Step 6: Final answer
    x = 11,783,714.30

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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.