Home / 813,816,037.46-1,220,782,891.41-340,639,192.52

Finding the Fourth Proportional to 813,816,037.46, 1,220,782,891.41 and 340,639,192.52

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Solution

The fourth proportional to 813,816,037.46, 1,220,782,891.41 and 340,639,192.52 is: 510,983,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,816,037.46 : 1,220,782,891.41 = 340,639,192.52 : x
  2. Step 2: Convert to fraction form
    813,816,037.46/1,220,782,891.41 = 340,639,192.52/x
  3. Step 3: Cross multiply
    813,816,037.46x = 1,220,782,891.41 × 340,639,192.52
  4. Step 4: Simplify right side
    813,816,037.46x = 415,846,498,372,133,248
  5. Step 5: Solve for x
    x = 415,846,498,372,133,248/813,816,037.46
  6. Step 6: Final answer
    x = 510,983,415.45

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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.