Home / 1,647,203,686.75-2,470,803,443.57-420,372,165.79

Finding the Fourth Proportional to 1,647,203,686.75, 2,470,803,443.57 and 420,372,165.79

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Solution

The fourth proportional to 1,647,203,686.75, 2,470,803,443.57 and 420,372,165.79 is: 630,557,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,203,686.75 : 2,470,803,443.57 = 420,372,165.79 : x
  2. Step 2: Convert to fraction form
    1,647,203,686.75/2,470,803,443.57 = 420,372,165.79/x
  3. Step 3: Cross multiply
    1,647,203,686.75x = 2,470,803,443.57 × 420,372,165.79
  4. Step 4: Simplify right side
    1,647,203,686.75x = 1,038,656,994,816,696,192
  5. Step 5: Solve for x
    x = 1,038,656,994,816,696,192/1,647,203,686.75
  6. Step 6: Final answer
    x = 630,557,716.19

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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.