Home / 21,368,052.40-32,052,078.60-13,405,428.40

Finding the Fourth Proportional to 21,368,052.40, 32,052,078.60 and 13,405,428.40

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Solution

The fourth proportional to 21,368,052.40, 32,052,078.60 and 13,405,428.40 is: 20,108,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368,052.40 : 32,052,078.60 = 13,405,428.40 : x
  2. Step 2: Convert to fraction form
    21,368,052.40/32,052,078.60 = 13,405,428.40/x
  3. Step 3: Cross multiply
    21,368,052.40x = 32,052,078.60 × 13,405,428.40
  4. Step 4: Simplify right side
    21,368,052.40x = 429,671,844,743,472.25
  5. Step 5: Solve for x
    x = 429,671,844,743,472.25/21,368,052.40
  6. Step 6: Final answer
    x = 20,108,142.60

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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.