Home / 13,290,702-18,341,176.14-7,179,130.56

Finding the Fourth Proportional to 13,290,702, 18,341,176.14 and 7,179,130.56

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Solution

The fourth proportional to 13,290,702, 18,341,176.14 and 7,179,130.56 is: 9,907,204.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,702 : 18,341,176.14 = 7,179,130.56 : x
  2. Step 2: Convert to fraction form
    13,290,702/18,341,176.14 = 7,179,130.56/x
  3. Step 3: Cross multiply
    13,290,702x = 18,341,176.14 × 7,179,130.56
  4. Step 4: Simplify right side
    13,290,702x = 131,673,698,133,016.83
  5. Step 5: Solve for x
    x = 131,673,698,133,016.83/13,290,702
  6. Step 6: Final answer
    x = 9,907,204.16

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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.