Home / 1,647,203,687.75-2,470,803,445.07-420,372,166.79

Finding the Fourth Proportional to 1,647,203,687.75, 2,470,803,445.07 and 420,372,166.79

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Solution

The fourth proportional to 1,647,203,687.75, 2,470,803,445.07 and 420,372,166.79 is: 630,557,717.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,203,687.75 : 2,470,803,445.07 = 420,372,166.79 : x
  2. Step 2: Convert to fraction form
    1,647,203,687.75/2,470,803,445.07 = 420,372,166.79/x
  3. Step 3: Cross multiply
    1,647,203,687.75x = 2,470,803,445.07 × 420,372,166.79
  4. Step 4: Simplify right side
    1,647,203,687.75x = 1,038,656,997,916,272,768
  5. Step 5: Solve for x
    x = 1,038,656,997,916,272,768/1,647,203,687.75
  6. Step 6: Final answer
    x = 630,557,717.69

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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.