Home / 1,389,622,102.20-2,084,500,187.28-456,924,300.12

Finding the Fourth Proportional to 1,389,622,102.20, 2,084,500,187.28 and 456,924,300.12

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Solution

The fourth proportional to 1,389,622,102.20, 2,084,500,187.28 and 456,924,300.12 is: 685,408,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,622,102.20 : 2,084,500,187.28 = 456,924,300.12 : x
  2. Step 2: Convert to fraction form
    1,389,622,102.20/2,084,500,187.28 = 456,924,300.12/x
  3. Step 3: Cross multiply
    1,389,622,102.20x = 2,084,500,187.28 × 456,924,300.12
  4. Step 4: Simplify right side
    1,389,622,102.20x = 952,458,789,172,922,880
  5. Step 5: Solve for x
    x = 952,458,789,172,922,880/1,389,622,102.20
  6. Step 6: Final answer
    x = 685,408,491.75

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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.