Home / 839,484,424.30-1,259,388,037.05-321,874,498.30

Finding the Fourth Proportional to 839,484,424.30, 1,259,388,037.05 and 321,874,498.30

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Solution

The fourth proportional to 839,484,424.30, 1,259,388,037.05 and 321,874,498.30 is: 482,873,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,484,424.30 : 1,259,388,037.05 = 321,874,498.30 : x
  2. Step 2: Convert to fraction form
    839,484,424.30/1,259,388,037.05 = 321,874,498.30/x
  3. Step 3: Cross multiply
    839,484,424.30x = 1,259,388,037.05 × 321,874,498.30
  4. Step 4: Simplify right side
    839,484,424.30x = 405,364,892,590,490,560
  5. Step 5: Solve for x
    x = 405,364,892,590,490,560/839,484,424.30
  6. Step 6: Final answer
    x = 482,873,631.55

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1.5x scale

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.