Home / 13,319,298.22-18,380,631.36-7,207,726.72

Finding the Fourth Proportional to 13,319,298.22, 18,380,631.36 and 7,207,726.72

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Solution

The fourth proportional to 13,319,298.22, 18,380,631.36 and 7,207,726.72 is: 9,946,662.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,298.22 : 18,380,631.36 = 7,207,726.72 : x
  2. Step 2: Convert to fraction form
    13,319,298.22/18,380,631.36 = 7,207,726.72/x
  3. Step 3: Cross multiply
    13,319,298.22x = 18,380,631.36 × 7,207,726.72
  4. Step 4: Simplify right side
    13,319,298.22x = 132,482,567,783,941.94
  5. Step 5: Solve for x
    x = 132,482,567,783,941.94/13,319,298.22
  6. Step 6: Final answer
    x = 9,946,662.77

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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.