Home / 20,501,431.19-28,292,565.51-11,334,664.43

Finding the Fourth Proportional to 20,501,431.19, 28,292,565.51 and 11,334,664.43

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Solution

The fourth proportional to 20,501,431.19, 28,292,565.51 and 11,334,664.43 is: 15,642,163.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,431.19 : 28,292,565.51 = 11,334,664.43 : x
  2. Step 2: Convert to fraction form
    20,501,431.19/28,292,565.51 = 11,334,664.43/x
  3. Step 3: Cross multiply
    20,501,431.19x = 28,292,565.51 × 11,334,664.43
  4. Step 4: Simplify right side
    20,501,431.19x = 320,686,735,778,179
  5. Step 5: Solve for x
    x = 320,686,735,778,179/20,501,431.19
  6. Step 6: Final answer
    x = 15,642,163.36

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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.