Home / 13,173,906-18,179,990.28-7,144,594

Finding the Fourth Proportional to 13,173,906, 18,179,990.28 and 7,144,594

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Solution

The fourth proportional to 13,173,906, 18,179,990.28 and 7,144,594 is: 9,859,539.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173,906 : 18,179,990.28 = 7,144,594 : x
  2. Step 2: Convert to fraction form
    13,173,906/18,179,990.28 = 7,144,594/x
  3. Step 3: Cross multiply
    13,173,906x = 18,179,990.28 × 7,144,594
  4. Step 4: Simplify right side
    13,173,906x = 129,888,649,474,546.33
  5. Step 5: Solve for x
    x = 129,888,649,474,546.33/13,173,906
  6. Step 6: Final answer
    x = 9,859,539.72

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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.