Home / 21,185,208.40-29,235,470.07-11,892,776.01

Finding the Fourth Proportional to 21,185,208.40, 29,235,470.07 and 11,892,776.01

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Solution

The fourth proportional to 21,185,208.40, 29,235,470.07 and 11,892,776.01 is: 16,411,964.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185,208.40 : 29,235,470.07 = 11,892,776.01 : x
  2. Step 2: Convert to fraction form
    21,185,208.40/29,235,470.07 = 11,892,776.01/x
  3. Step 3: Cross multiply
    21,185,208.40x = 29,235,470.07 × 11,892,776.01
  4. Step 4: Simplify right side
    21,185,208.40x = 347,690,897,089,569
  5. Step 5: Solve for x
    x = 347,690,897,089,569/21,185,208.40
  6. Step 6: Final answer
    x = 16,411,964.92

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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.