Home / 2,168,909,981.40-2,993,158,912.15-1,229,081,373.48

Finding the Fourth Proportional to 2,168,909,981.40, 2,993,158,912.15 and 1,229,081,373.48

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Solution

The fourth proportional to 2,168,909,981.40, 2,993,158,912.15 and 1,229,081,373.48 is: 1,696,168,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,909,981.40 : 2,993,158,912.15 = 1,229,081,373.48 : x
  2. Step 2: Convert to fraction form
    2,168,909,981.40/2,993,158,912.15 = 1,229,081,373.48/x
  3. Step 3: Cross multiply
    2,168,909,981.40x = 2,993,158,912.15 × 1,229,081,373.48
  4. Step 4: Simplify right side
    2,168,909,981.40x = 3,678,835,866,783,079,424
  5. Step 5: Solve for x
    x = 3,678,835,866,783,079,424/2,168,909,981.40
  6. Step 6: Final answer
    x = 1,696,168,074.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.