Home / 21,129,973.56-31,649,406.45-14,268,818.07

Finding the Fourth Proportional to 21,129,973.56, 31,649,406.45 and 14,268,818.07

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Solution

The fourth proportional to 21,129,973.56, 31,649,406.45 and 14,268,818.07 is: 21,372,465.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,129,973.56 : 31,649,406.45 = 14,268,818.07 : x
  2. Step 2: Convert to fraction form
    21,129,973.56/31,649,406.45 = 14,268,818.07/x
  3. Step 3: Cross multiply
    21,129,973.56x = 31,649,406.45 × 14,268,818.07
  4. Step 4: Simplify right side
    21,129,973.56x = 451,599,622,658,534.56
  5. Step 5: Solve for x
    x = 451,599,622,658,534.56/21,129,973.56
  6. Step 6: Final answer
    x = 21,372,465.11

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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.