Home / 12,457,847.80-18,686,771.70-4,379,944.60

Finding the Fourth Proportional to 12,457,847.80, 18,686,771.70 and 4,379,944.60

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Solution

The fourth proportional to 12,457,847.80, 18,686,771.70 and 4,379,944.60 is: 6,569,916.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,847.80 : 18,686,771.70 = 4,379,944.60 : x
  2. Step 2: Convert to fraction form
    12,457,847.80/18,686,771.70 = 4,379,944.60/x
  3. Step 3: Cross multiply
    12,457,847.80x = 18,686,771.70 × 4,379,944.60
  4. Step 4: Simplify right side
    12,457,847.80x = 81,847,024,798,847.81
  5. Step 5: Solve for x
    x = 81,847,024,798,847.81/12,457,847.80
  6. Step 6: Final answer
    x = 6,569,916.90

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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.