Home / 13,590,724.86-18,755,203.05-7,479,153.36

Finding the Fourth Proportional to 13,590,724.86, 18,755,203.05 and 7,479,153.36

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Solution

The fourth proportional to 13,590,724.86, 18,755,203.05 and 7,479,153.36 is: 10,321,233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,724.86 : 18,755,203.05 = 7,479,153.36 : x
  2. Step 2: Convert to fraction form
    13,590,724.86/18,755,203.05 = 7,479,153.36/x
  3. Step 3: Cross multiply
    13,590,724.86x = 18,755,203.05 × 7,479,153.36
  4. Step 4: Simplify right side
    13,590,724.86x = 140,273,039,908,889.77
  5. Step 5: Solve for x
    x = 140,273,039,908,889.77/13,590,724.86
  6. Step 6: Final answer
    x = 10,321,233.15

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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.