Home / 1,647,218,347.86-2,470,825,538.85-420,386,930.58

Finding the Fourth Proportional to 1,647,218,347.86, 2,470,825,538.85 and 420,386,930.58

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Solution

The fourth proportional to 1,647,218,347.86, 2,470,825,538.85 and 420,386,930.58 is: 630,579,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,218,347.86 : 2,470,825,538.85 = 420,386,930.58 : x
  2. Step 2: Convert to fraction form
    1,647,218,347.86/2,470,825,538.85 = 420,386,930.58/x
  3. Step 3: Cross multiply
    1,647,218,347.86x = 2,470,825,538.85 × 420,386,930.58
  4. Step 4: Simplify right side
    1,647,218,347.86x = 1,038,702,764,275,825,920
  5. Step 5: Solve for x
    x = 1,038,702,764,275,825,920/1,647,218,347.86
  6. Step 6: Final answer
    x = 630,579,889.80

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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.