Home / 2,129,990,520.36-2,939,678,917.23-1,225,727,871.18

Finding the Fourth Proportional to 2,129,990,520.36, 2,939,678,917.23 and 1,225,727,871.18

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Solution

The fourth proportional to 2,129,990,520.36, 2,939,678,917.23 and 1,225,727,871.18 is: 1,691,672,496.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,990,520.36 : 2,939,678,917.23 = 1,225,727,871.18 : x
  2. Step 2: Convert to fraction form
    2,129,990,520.36/2,939,678,917.23 = 1,225,727,871.18/x
  3. Step 3: Cross multiply
    2,129,990,520.36x = 2,939,678,917.23 × 1,225,727,871.18
  4. Step 4: Simplify right side
    2,129,990,520.36x = 3,603,246,381,169,055,744
  5. Step 5: Solve for x
    x = 3,603,246,381,169,055,744/2,129,990,520.36
  6. Step 6: Final answer
    x = 1,691,672,496.53

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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.