Home / 21,212,745,872.86-31,824,523,564.29-6,290,456,549.18

Finding the Fourth Proportional to 21,212,745,872.86, 31,824,523,564.29 and 6,290,456,549.18

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Solution

The fourth proportional to 21,212,745,872.86, 31,824,523,564.29 and 6,290,456,549.18 is: 9,437,287,557.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,745,872.86 : 31,824,523,564.29 = 6,290,456,549.18 : x
  2. Step 2: Convert to fraction form
    21,212,745,872.86/31,824,523,564.29 = 6,290,456,549.18/x
  3. Step 3: Cross multiply
    21,212,745,872.86x = 31,824,523,564.29 × 6,290,456,549.18
  4. Step 4: Simplify right side
    21,212,745,872.86x = 200,190,782,679,521,296,384
  5. Step 5: Solve for x
    x = 200,190,782,679,521,296,384/21,212,745,872.86
  6. Step 6: Final answer
    x = 9,437,287,557.18

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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.