Home / 1,680,942,823.40-2,521,792,148.70-990,494,676.20

Finding the Fourth Proportional to 1,680,942,823.40, 2,521,792,148.70 and 990,494,676.20

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Solution

The fourth proportional to 1,680,942,823.40, 2,521,792,148.70 and 990,494,676.20 is: 1,485,964,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,942,823.40 : 2,521,792,148.70 = 990,494,676.20 : x
  2. Step 2: Convert to fraction form
    1,680,942,823.40/2,521,792,148.70 = 990,494,676.20/x
  3. Step 3: Cross multiply
    1,680,942,823.40x = 2,521,792,148.70 × 990,494,676.20
  4. Step 4: Simplify right side
    1,680,942,823.40x = 2,497,821,697,770,308,608
  5. Step 5: Solve for x
    x = 2,497,821,697,770,308,608/1,680,942,823.40
  6. Step 6: Final answer
    x = 1,485,964,699.69

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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.