Home / 53,910,669.41-80,902,389.80-21,117,170.64

Finding the Fourth Proportional to 53,910,669.41, 80,902,389.80 and 21,117,170.64

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Solution

The fourth proportional to 53,910,669.41, 80,902,389.80 and 21,117,170.64 is: 31,690,008.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,910,669.41 : 80,902,389.80 = 21,117,170.64 : x
  2. Step 2: Convert to fraction form
    53,910,669.41/80,902,389.80 = 21,117,170.64/x
  3. Step 3: Cross multiply
    53,910,669.41x = 80,902,389.80 × 21,117,170.64
  4. Step 4: Simplify right side
    53,910,669.41x = 1,708,429,570,484,809.75
  5. Step 5: Solve for x
    x = 1,708,429,570,484,809.75/53,910,669.41
  6. Step 6: Final answer
    x = 31,690,008.47

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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.