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Finding the Fourth Proportional to 13,508,978.29, 20,238,041.73 and 6,677,554.93

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Solution

The fourth proportional to 13,508,978.29, 20,238,041.73 and 6,677,554.93 is: 10,003,764.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508,978.29 : 20,238,041.73 = 6,677,554.93 : x
  2. Step 2: Convert to fraction form
    13,508,978.29/20,238,041.73 = 6,677,554.93/x
  3. Step 3: Cross multiply
    13,508,978.29x = 20,238,041.73 × 6,677,554.93
  4. Step 4: Simplify right side
    13,508,978.29x = 135,140,635,327,707.22
  5. Step 5: Solve for x
    x = 135,140,635,327,707.22/13,508,978.29
  6. Step 6: Final answer
    x = 10,003,764.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.