Home / 20,723,320.40-31,084,980.60-19,462,571.60

Finding the Fourth Proportional to 20,723,320.40, 31,084,980.60 and 19,462,571.60

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Solution

The fourth proportional to 20,723,320.40, 31,084,980.60 and 19,462,571.60 is: 29,193,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,320.40 : 31,084,980.60 = 19,462,571.60 : x
  2. Step 2: Convert to fraction form
    20,723,320.40/31,084,980.60 = 19,462,571.60/x
  3. Step 3: Cross multiply
    20,723,320.40x = 31,084,980.60 × 19,462,571.60
  4. Step 4: Simplify right side
    20,723,320.40x = 604,993,660,612,111
  5. Step 5: Solve for x
    x = 604,993,660,612,111/20,723,320.40
  6. Step 6: Final answer
    x = 29,193,857.40

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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.