Home / 1,611,879,990.30-2,413,788,907.05-1,289,393,718.30

Finding the Fourth Proportional to 1,611,879,990.30, 2,413,788,907.05 and 1,289,393,718.30

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Solution

The fourth proportional to 1,611,879,990.30, 2,413,788,907.05 and 1,289,393,718.30 is: 1,930,865,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,879,990.30 : 2,413,788,907.05 = 1,289,393,718.30 : x
  2. Step 2: Convert to fraction form
    1,611,879,990.30/2,413,788,907.05 = 1,289,393,718.30/x
  3. Step 3: Cross multiply
    1,611,879,990.30x = 2,413,788,907.05 × 1,289,393,718.30
  4. Step 4: Simplify right side
    1,611,879,990.30x = 3,112,324,254,052,492,800
  5. Step 5: Solve for x
    x = 3,112,324,254,052,492,800/1,611,879,990.30
  6. Step 6: Final answer
    x = 1,930,865,990.51

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Double scale
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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.