Home / 39,958,670.56-55,143,103.98-21,623,951.20

Finding the Fourth Proportional to 39,958,670.56, 55,143,103.98 and 21,623,951.20

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Solution

The fourth proportional to 39,958,670.56, 55,143,103.98 and 21,623,951.20 is: 29,841,127.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,958,670.56 : 55,143,103.98 = 21,623,951.20 : x
  2. Step 2: Convert to fraction form
    39,958,670.56/55,143,103.98 = 21,623,951.20/x
  3. Step 3: Cross multiply
    39,958,670.56x = 55,143,103.98 × 21,623,951.20
  4. Step 4: Simplify right side
    39,958,670.56x = 1,192,411,789,480,045.75
  5. Step 5: Solve for x
    x = 1,192,411,789,480,045.75/39,958,670.56
  6. Step 6: Final answer
    x = 29,841,127.66

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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.