Home / 13,997,986.40-20,996,979.60-3,900,607.40

Finding the Fourth Proportional to 13,997,986.40, 20,996,979.60 and 3,900,607.40

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Solution

The fourth proportional to 13,997,986.40, 20,996,979.60 and 3,900,607.40 is: 5,850,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997,986.40 : 20,996,979.60 = 3,900,607.40 : x
  2. Step 2: Convert to fraction form
    13,997,986.40/20,996,979.60 = 3,900,607.40/x
  3. Step 3: Cross multiply
    13,997,986.40x = 20,996,979.60 × 3,900,607.40
  4. Step 4: Simplify right side
    13,997,986.40x = 81,900,974,005,409.05
  5. Step 5: Solve for x
    x = 81,900,974,005,409.05/13,997,986.40
  6. Step 6: Final answer
    x = 5,850,911.10

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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.