Home / 2,805,821,821.89-3,871,876,569.44-1,535,660,208.32

Finding the Fourth Proportional to 2,805,821,821.89, 3,871,876,569.44 and 1,535,660,208.32

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Solution

The fourth proportional to 2,805,821,821.89, 3,871,876,569.44 and 1,535,660,208.32 is: 2,119,124,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805,821,821.89 : 3,871,876,569.44 = 1,535,660,208.32 : x
  2. Step 2: Convert to fraction form
    2,805,821,821.89/3,871,876,569.44 = 1,535,660,208.32/x
  3. Step 3: Cross multiply
    2,805,821,821.89x = 3,871,876,569.44 × 1,535,660,208.32
  4. Step 4: Simplify right side
    2,805,821,821.89x = 5,945,886,779,188,519,936
  5. Step 5: Solve for x
    x = 5,945,886,779,188,519,936/2,805,821,821.89
  6. Step 6: Final answer
    x = 2,119,124,861.32

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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.