Home / 13,013,456.58-17,958,571.75-7,212,612.83

Finding the Fourth Proportional to 13,013,456.58, 17,958,571.75 and 7,212,612.83

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Solution

The fourth proportional to 13,013,456.58, 17,958,571.75 and 7,212,612.83 is: 9,953,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,456.58 : 17,958,571.75 = 7,212,612.83 : x
  2. Step 2: Convert to fraction form
    13,013,456.58/17,958,571.75 = 7,212,612.83/x
  3. Step 3: Cross multiply
    13,013,456.58x = 17,958,571.75 × 7,212,612.83
  4. Step 4: Simplify right side
    13,013,456.58x = 129,528,224,985,660.66
  5. Step 5: Solve for x
    x = 129,528,224,985,660.66/13,013,456.58
  6. Step 6: Final answer
    x = 9,953,406.63

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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.