Home / 34,157,638-47,158,042.24-21,122,374.40

Finding the Fourth Proportional to 34,157,638, 47,158,042.24 and 21,122,374.40

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Solution

The fourth proportional to 34,157,638, 47,158,042.24 and 21,122,374.40 is: 29,161,554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,157,638 : 47,158,042.24 = 21,122,374.40 : x
  2. Step 2: Convert to fraction form
    34,157,638/47,158,042.24 = 21,122,374.40/x
  3. Step 3: Cross multiply
    34,157,638x = 47,158,042.24 × 21,122,374.40
  4. Step 4: Simplify right side
    34,157,638x = 996,089,824,164,294.62
  5. Step 5: Solve for x
    x = 996,089,824,164,294.62/34,157,638
  6. Step 6: Final answer
    x = 29,161,554.56

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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.