Home / 18,901,581.16-28,367,505.78-9,806,285.56

Finding the Fourth Proportional to 18,901,581.16, 28,367,505.78 and 9,806,285.56

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Solution

The fourth proportional to 18,901,581.16, 28,367,505.78 and 9,806,285.56 is: 14,717,280.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901,581.16 : 28,367,505.78 = 9,806,285.56 : x
  2. Step 2: Convert to fraction form
    18,901,581.16/28,367,505.78 = 9,806,285.56/x
  3. Step 3: Cross multiply
    18,901,581.16x = 28,367,505.78 × 9,806,285.56
  4. Step 4: Simplify right side
    18,901,581.16x = 278,179,862,303,630.56
  5. Step 5: Solve for x
    x = 278,179,862,303,630.56/18,901,581.16
  6. Step 6: Final answer
    x = 14,717,280.00

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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.