Home / 21,160,933.95-31,741,400.93-13,047,601.35

Finding the Fourth Proportional to 21,160,933.95, 31,741,400.93 and 13,047,601.35

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Solution

The fourth proportional to 21,160,933.95, 31,741,400.93 and 13,047,601.35 is: 19,571,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,933.95 : 31,741,400.93 = 13,047,601.35 : x
  2. Step 2: Convert to fraction form
    21,160,933.95/31,741,400.93 = 13,047,601.35/x
  3. Step 3: Cross multiply
    21,160,933.95x = 31,741,400.93 × 13,047,601.35
  4. Step 4: Simplify right side
    21,160,933.95x = 414,149,145,559,921.25
  5. Step 5: Solve for x
    x = 414,149,145,559,921.25/21,160,933.95
  6. Step 6: Final answer
    x = 19,571,402.03

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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.