Home / 21,208,814.88-31,783,568.76-11,472,412.20

Finding the Fourth Proportional to 21,208,814.88, 31,783,568.76 and 11,472,412.20

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Solution

The fourth proportional to 21,208,814.88, 31,783,568.76 and 11,472,412.20 is: 17,192,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208,814.88 : 31,783,568.76 = 11,472,412.20 : x
  2. Step 2: Convert to fraction form
    21,208,814.88/31,783,568.76 = 11,472,412.20/x
  3. Step 3: Cross multiply
    21,208,814.88x = 31,783,568.76 × 11,472,412.20
  4. Step 4: Simplify right side
    21,208,814.88x = 364,634,202,001,762.88
  5. Step 5: Solve for x
    x = 364,634,202,001,762.88/21,208,814.88
  6. Step 6: Final answer
    x = 17,192,577.90

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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.