Home / 18,789,832.32-25,929,100.80-10,641,128.96

Finding the Fourth Proportional to 18,789,832.32, 25,929,100.80 and 10,641,128.96

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Solution

The fourth proportional to 18,789,832.32, 25,929,100.80 and 10,641,128.96 is: 14,684,266.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789,832.32 : 25,929,100.80 = 10,641,128.96 : x
  2. Step 2: Convert to fraction form
    18,789,832.32/25,929,100.80 = 10,641,128.96/x
  3. Step 3: Cross multiply
    18,789,832.32x = 25,929,100.80 × 10,641,128.96
  4. Step 4: Simplify right side
    18,789,832.32x = 275,914,905,429,639.19
  5. Step 5: Solve for x
    x = 275,914,905,429,639.19/18,789,832.32
  6. Step 6: Final answer
    x = 14,684,266.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.