Home / 13,290,611.44-18,341,040.96-7,179,040

Finding the Fourth Proportional to 13,290,611.44, 18,341,040.96 and 7,179,040

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Solution

The fourth proportional to 13,290,611.44, 18,341,040.96 and 7,179,040 is: 9,907,073.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,611.44 : 18,341,040.96 = 7,179,040 : x
  2. Step 2: Convert to fraction form
    13,290,611.44/18,341,040.96 = 7,179,040/x
  3. Step 3: Cross multiply
    13,290,611.44x = 18,341,040.96 × 7,179,040
  4. Step 4: Simplify right side
    13,290,611.44x = 131,671,066,693,478.41
  5. Step 5: Solve for x
    x = 131,671,066,693,478.41/13,290,611.44
  6. Step 6: Final answer
    x = 9,907,073.67

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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.