Home / 20,774,566.86-28,670,385.80-11,481,937.23

Finding the Fourth Proportional to 20,774,566.86, 28,670,385.80 and 11,481,937.23

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Solution

The fourth proportional to 20,774,566.86, 28,670,385.80 and 11,481,937.23 is: 15,845,893.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,566.86 : 28,670,385.80 = 11,481,937.23 : x
  2. Step 2: Convert to fraction form
    20,774,566.86/28,670,385.80 = 11,481,937.23/x
  3. Step 3: Cross multiply
    20,774,566.86x = 28,670,385.80 × 11,481,937.23
  4. Step 4: Simplify right side
    20,774,566.86x = 329,191,570,058,073.69
  5. Step 5: Solve for x
    x = 329,191,570,058,073.69/20,774,566.86
  6. Step 6: Final answer
    x = 15,845,893.31

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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.