Home / 1,311,578,120.94-1,808,805,723.03-1,088,205,989.10

Finding the Fourth Proportional to 1,311,578,120.94, 1,808,805,723.03 and 1,088,205,989.10

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Solution

The fourth proportional to 1,311,578,120.94, 1,808,805,723.03 and 1,088,205,989.10 is: 1,500,751,796.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,578,120.94 : 1,808,805,723.03 = 1,088,205,989.10 : x
  2. Step 2: Convert to fraction form
    1,311,578,120.94/1,808,805,723.03 = 1,088,205,989.10/x
  3. Step 3: Cross multiply
    1,311,578,120.94x = 1,808,805,723.03 × 1,088,205,989.10
  4. Step 4: Simplify right side
    1,311,578,120.94x = 1,968,353,220,919,601,664
  5. Step 5: Solve for x
    x = 1,968,353,220,919,601,664/1,311,578,120.94
  6. Step 6: Final answer
    x = 1,500,751,796.25

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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.