Home / 20,941,658.40-31,412,487.60-14,139,213.60

Finding the Fourth Proportional to 20,941,658.40, 31,412,487.60 and 14,139,213.60

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Solution

The fourth proportional to 20,941,658.40, 31,412,487.60 and 14,139,213.60 is: 21,208,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941,658.40 : 31,412,487.60 = 14,139,213.60 : x
  2. Step 2: Convert to fraction form
    20,941,658.40/31,412,487.60 = 14,139,213.60/x
  3. Step 3: Cross multiply
    20,941,658.40x = 31,412,487.60 × 14,139,213.60
  4. Step 4: Simplify right side
    20,941,658.40x = 444,147,871,883,751.38
  5. Step 5: Solve for x
    x = 444,147,871,883,751.38/20,941,658.40
  6. Step 6: Final answer
    x = 21,208,820.40

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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.