Home / 12,481,457.60-18,724,000.80-5,292,977.60

Finding the Fourth Proportional to 12,481,457.60, 18,724,000.80 and 5,292,977.60

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Solution

The fourth proportional to 12,481,457.60, 18,724,000.80 and 5,292,977.60 is: 7,940,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,457.60 : 18,724,000.80 = 5,292,977.60 : x
  2. Step 2: Convert to fraction form
    12,481,457.60/18,724,000.80 = 5,292,977.60/x
  3. Step 3: Cross multiply
    12,481,457.60x = 18,724,000.80 × 5,292,977.60
  4. Step 4: Simplify right side
    12,481,457.60x = 99,105,716,816,782.08
  5. Step 5: Solve for x
    x = 99,105,716,816,782.08/12,481,457.60
  6. Step 6: Final answer
    x = 7,940,235.83

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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.