Home / 21,303,032.80-31,954,549.20-13,225,129.60

Finding the Fourth Proportional to 21,303,032.80, 31,954,549.20 and 13,225,129.60

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Solution

The fourth proportional to 21,303,032.80, 31,954,549.20 and 13,225,129.60 is: 19,837,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,032.80 : 31,954,549.20 = 13,225,129.60 : x
  2. Step 2: Convert to fraction form
    21,303,032.80/31,954,549.20 = 13,225,129.60/x
  3. Step 3: Cross multiply
    21,303,032.80x = 31,954,549.20 × 13,225,129.60
  4. Step 4: Simplify right side
    21,303,032.80x = 422,603,054,479,576.31
  5. Step 5: Solve for x
    x = 422,603,054,479,576.31/21,303,032.80
  6. Step 6: Final answer
    x = 19,837,694.40

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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.