Home / 2,168,909,981.15-2,993,158,911.80-1,229,081,373.23

Finding the Fourth Proportional to 2,168,909,981.15, 2,993,158,911.80 and 1,229,081,373.23

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Solution

The fourth proportional to 2,168,909,981.15, 2,993,158,911.80 and 1,229,081,373.23 is: 1,696,168,074.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,909,981.15 : 2,993,158,911.80 = 1,229,081,373.23 : x
  2. Step 2: Convert to fraction form
    2,168,909,981.15/2,993,158,911.80 = 1,229,081,373.23/x
  3. Step 3: Cross multiply
    2,168,909,981.15x = 2,993,158,911.80 × 1,229,081,373.23
  4. Step 4: Simplify right side
    2,168,909,981.15x = 3,678,835,865,603,273,728
  5. Step 5: Solve for x
    x = 3,678,835,865,603,273,728/2,168,909,981.15
  6. Step 6: Final answer
    x = 1,696,168,074.09

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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.