Home / 53,587,703.52-80,359,918.56-20,780,999.28

Finding the Fourth Proportional to 53,587,703.52, 80,359,918.56 and 20,780,999.28

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Solution

The fourth proportional to 53,587,703.52, 80,359,918.56 and 20,780,999.28 is: 31,163,108.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,587,703.52 : 80,359,918.56 = 20,780,999.28 : x
  2. Step 2: Convert to fraction form
    53,587,703.52/80,359,918.56 = 20,780,999.28/x
  3. Step 3: Cross multiply
    53,587,703.52x = 80,359,918.56 × 20,780,999.28
  4. Step 4: Simplify right side
    53,587,703.52x = 1,669,959,409,736,218.75
  5. Step 5: Solve for x
    x = 1,669,959,409,736,218.75/53,587,703.52
  6. Step 6: Final answer
    x = 31,163,108.33

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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.