Home / 21,042,196.77-31,572,388.07-11,315,441.07

Finding the Fourth Proportional to 21,042,196.77, 31,572,388.07 and 11,315,441.07

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Solution

The fourth proportional to 21,042,196.77, 31,572,388.07 and 11,315,441.07 is: 16,978,051.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,196.77 : 31,572,388.07 = 11,315,441.07 : x
  2. Step 2: Convert to fraction form
    21,042,196.77/31,572,388.07 = 11,315,441.07/x
  3. Step 3: Cross multiply
    21,042,196.77x = 31,572,388.07 × 11,315,441.07
  4. Step 4: Simplify right side
    21,042,196.77x = 357,255,496,430,816.88
  5. Step 5: Solve for x
    x = 357,255,496,430,816.88/21,042,196.77
  6. Step 6: Final answer
    x = 16,978,051.31

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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.