Home / 38,830,941.98-53,587,838.78-21,190,983.49

Finding the Fourth Proportional to 38,830,941.98, 53,587,838.78 and 21,190,983.49

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Solution

The fourth proportional to 38,830,941.98, 53,587,838.78 and 21,190,983.49 is: 29,244,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,830,941.98 : 53,587,838.78 = 21,190,983.49 : x
  2. Step 2: Convert to fraction form
    38,830,941.98/53,587,838.78 = 21,190,983.49/x
  3. Step 3: Cross multiply
    38,830,941.98x = 53,587,838.78 × 21,190,983.49
  4. Step 4: Simplify right side
    38,830,941.98x = 1,135,579,006,851,761.75
  5. Step 5: Solve for x
    x = 1,135,579,006,851,761.75/38,830,941.98
  6. Step 6: Final answer
    x = 29,244,178.71

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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.