Home / 13,319,292.72-18,380,623.77-7,207,721.22

Finding the Fourth Proportional to 13,319,292.72, 18,380,623.77 and 7,207,721.22

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Solution

The fourth proportional to 13,319,292.72, 18,380,623.77 and 7,207,721.22 is: 9,946,655.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,292.72 : 18,380,623.77 = 7,207,721.22 : x
  2. Step 2: Convert to fraction form
    13,319,292.72/18,380,623.77 = 7,207,721.22/x
  3. Step 3: Cross multiply
    13,319,292.72x = 18,380,623.77 × 7,207,721.22
  4. Step 4: Simplify right side
    13,319,292.72x = 132,482,411,983,865.39
  5. Step 5: Solve for x
    x = 132,482,411,983,865.39/13,319,292.72
  6. Step 6: Final answer
    x = 9,946,655.18

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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.