Home / 13,319,298.72-18,380,632.05-7,207,727.22

Finding the Fourth Proportional to 13,319,298.72, 18,380,632.05 and 7,207,727.22

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Solution

The fourth proportional to 13,319,298.72, 18,380,632.05 and 7,207,727.22 is: 9,946,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,298.72 : 18,380,632.05 = 7,207,727.22 : x
  2. Step 2: Convert to fraction form
    13,319,298.72/18,380,632.05 = 7,207,727.22/x
  3. Step 3: Cross multiply
    13,319,298.72x = 18,380,632.05 × 7,207,727.22
  4. Step 4: Simplify right side
    13,319,298.72x = 132,482,581,947,589.41
  5. Step 5: Solve for x
    x = 132,482,581,947,589.41/13,319,298.72
  6. Step 6: Final answer
    x = 9,946,663.46

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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.