Home / 1,586,313,638.40-2,379,470,457.60-1,280,203,622.40

Finding the Fourth Proportional to 1,586,313,638.40, 2,379,470,457.60 and 1,280,203,622.40

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Solution

The fourth proportional to 1,586,313,638.40, 2,379,470,457.60 and 1,280,203,622.40 is: 1,920,305,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,313,638.40 : 2,379,470,457.60 = 1,280,203,622.40 : x
  2. Step 2: Convert to fraction form
    1,586,313,638.40/2,379,470,457.60 = 1,280,203,622.40/x
  3. Step 3: Cross multiply
    1,586,313,638.40x = 2,379,470,457.60 × 1,280,203,622.40
  4. Step 4: Simplify right side
    1,586,313,638.40x = 3,046,206,699,213,305,856
  5. Step 5: Solve for x
    x = 3,046,206,699,213,305,856/1,586,313,638.40
  6. Step 6: Final answer
    x = 1,920,305,433.60

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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.