Home / 21,026,168.53-29,010,629.32-12,319,663.21

Finding the Fourth Proportional to 21,026,168.53, 29,010,629.32 and 12,319,663.21

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Solution

The fourth proportional to 21,026,168.53, 29,010,629.32 and 12,319,663.21 is: 16,997,922.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026,168.53 : 29,010,629.32 = 12,319,663.21 : x
  2. Step 2: Convert to fraction form
    21,026,168.53/29,010,629.32 = 12,319,663.21/x
  3. Step 3: Cross multiply
    21,026,168.53x = 29,010,629.32 × 12,319,663.21
  4. Step 4: Simplify right side
    21,026,168.53x = 357,401,182,732,551.38
  5. Step 5: Solve for x
    x = 357,401,182,732,551.38/21,026,168.53
  6. Step 6: Final answer
    x = 16,997,922.48

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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.