Home / 1,680,942,732.40-2,521,792,012.20-990,494,585.20

Finding the Fourth Proportional to 1,680,942,732.40, 2,521,792,012.20 and 990,494,585.20

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Solution

The fourth proportional to 1,680,942,732.40, 2,521,792,012.20 and 990,494,585.20 is: 1,485,964,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,942,732.40 : 2,521,792,012.20 = 990,494,585.20 : x
  2. Step 2: Convert to fraction form
    1,680,942,732.40/2,521,792,012.20 = 990,494,585.20/x
  3. Step 3: Cross multiply
    1,680,942,732.40x = 2,521,792,012.20 × 990,494,585.20
  4. Step 4: Simplify right side
    1,680,942,732.40x = 2,497,821,333,084,712,448
  5. Step 5: Solve for x
    x = 2,497,821,333,084,712,448/1,680,942,732.40
  6. Step 6: Final answer
    x = 1,485,964,563.18

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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.