Home / 13,173,909.50-18,179,995.12-7,144,597.50

Finding the Fourth Proportional to 13,173,909.50, 18,179,995.12 and 7,144,597.50

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Solution

The fourth proportional to 13,173,909.50, 18,179,995.12 and 7,144,597.50 is: 9,859,544.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173,909.50 : 18,179,995.12 = 7,144,597.50 : x
  2. Step 2: Convert to fraction form
    13,173,909.50/18,179,995.12 = 7,144,597.50/x
  3. Step 3: Cross multiply
    13,173,909.50x = 18,179,995.12 × 7,144,597.50
  4. Step 4: Simplify right side
    13,173,909.50x = 129,888,747,684,364.20
  5. Step 5: Solve for x
    x = 129,888,747,684,364.20/13,173,909.50
  6. Step 6: Final answer
    x = 9,859,544.56

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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.