Home / 21,991,332.70-32,986,999.05-18,590,110.30

Finding the Fourth Proportional to 21,991,332.70, 32,986,999.05 and 18,590,110.30

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Solution

The fourth proportional to 21,991,332.70, 32,986,999.05 and 18,590,110.30 is: 27,885,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991,332.70 : 32,986,999.05 = 18,590,110.30 : x
  2. Step 2: Convert to fraction form
    21,991,332.70/32,986,999.05 = 18,590,110.30/x
  3. Step 3: Cross multiply
    21,991,332.70x = 32,986,999.05 × 18,590,110.30
  4. Step 4: Simplify right side
    21,991,332.70x = 613,231,950,805,495.25
  5. Step 5: Solve for x
    x = 613,231,950,805,495.25/21,991,332.70
  6. Step 6: Final answer
    x = 27,885,165.45

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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.