Home / 13,290,704-18,341,178.90-7,179,132.56

Finding the Fourth Proportional to 13,290,704, 18,341,178.90 and 7,179,132.56

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Solution

The fourth proportional to 13,290,704, 18,341,178.90 and 7,179,132.56 is: 9,907,206.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,704 : 18,341,178.90 = 7,179,132.56 : x
  2. Step 2: Convert to fraction form
    13,290,704/18,341,178.90 = 7,179,132.56/x
  3. Step 3: Cross multiply
    13,290,704x = 18,341,178.90 × 7,179,132.56
  4. Step 4: Simplify right side
    13,290,704x = 131,673,754,629,774.97
  5. Step 5: Solve for x
    x = 131,673,754,629,774.97/13,290,704
  6. Step 6: Final answer
    x = 9,907,206.92

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1.5x scale

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.