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Finding the Fourth Proportional to 13,662,652.80, 18,854,415.06 and 7,467,695.93

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Solution

The fourth proportional to 13,662,652.80, 18,854,415.06 and 7,467,695.93 is: 10,305,395.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662,652.80 : 18,854,415.06 = 7,467,695.93 : x
  2. Step 2: Convert to fraction form
    13,662,652.80/18,854,415.06 = 7,467,695.93/x
  3. Step 3: Cross multiply
    13,662,652.80x = 18,854,415.06 × 7,467,695.93
  4. Step 4: Simplify right side
    13,662,652.80x = 140,799,038,511,820.62
  5. Step 5: Solve for x
    x = 140,799,038,511,820.62/13,662,652.80
  6. Step 6: Final answer
    x = 10,305,395.34

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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.