Home / 13,319,161.16-18,380,458.67-7,207,589.66

Finding the Fourth Proportional to 13,319,161.16, 18,380,458.67 and 7,207,589.66

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Solution

The fourth proportional to 13,319,161.16, 18,380,458.67 and 7,207,589.66 is: 9,946,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,161.16 : 18,380,458.67 = 7,207,589.66 : x
  2. Step 2: Convert to fraction form
    13,319,161.16/18,380,458.67 = 7,207,589.66/x
  3. Step 3: Cross multiply
    13,319,161.16x = 18,380,458.67 × 7,207,589.66
  4. Step 4: Simplify right side
    13,319,161.16x = 132,478,803,728,009.11
  5. Step 5: Solve for x
    x = 132,478,803,728,009.11/13,319,161.16
  6. Step 6: Final answer
    x = 9,946,482.53

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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.