Home / 18,959,220.72-26,190,509.22-15,086,787.30

Finding the Fourth Proportional to 18,959,220.72, 26,190,509.22 and 15,086,787.30

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Solution

The fourth proportional to 18,959,220.72, 26,190,509.22 and 15,086,787.30 is: 20,841,080.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959,220.72 : 26,190,509.22 = 15,086,787.30 : x
  2. Step 2: Convert to fraction form
    18,959,220.72/26,190,509.22 = 15,086,787.30/x
  3. Step 3: Cross multiply
    18,959,220.72x = 26,190,509.22 × 15,086,787.30
  4. Step 4: Simplify right side
    18,959,220.72x = 395,130,641,880,828.94
  5. Step 5: Solve for x
    x = 395,130,641,880,828.94/18,959,220.72
  6. Step 6: Final answer
    x = 20,841,080.32

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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.