Home / 1,212,485,087.70-1,818,727,631.55-1,090,041,081.30

Finding the Fourth Proportional to 1,212,485,087.70, 1,818,727,631.55 and 1,090,041,081.30

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Solution

The fourth proportional to 1,212,485,087.70, 1,818,727,631.55 and 1,090,041,081.30 is: 1,635,061,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,485,087.70 : 1,818,727,631.55 = 1,090,041,081.30 : x
  2. Step 2: Convert to fraction form
    1,212,485,087.70/1,818,727,631.55 = 1,090,041,081.30/x
  3. Step 3: Cross multiply
    1,212,485,087.70x = 1,818,727,631.55 × 1,090,041,081.30
  4. Step 4: Simplify right side
    1,212,485,087.70x = 1,982,487,834,084,949,760
  5. Step 5: Solve for x
    x = 1,982,487,834,084,949,760/1,212,485,087.70
  6. Step 6: Final answer
    x = 1,635,061,621.95

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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.