Home / 3,989,087,999.70-5,983,631,999.55-1,917,743,558.10

Finding the Fourth Proportional to 3,989,087,999.70, 5,983,631,999.55 and 1,917,743,558.10

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Solution

The fourth proportional to 3,989,087,999.70, 5,983,631,999.55 and 1,917,743,558.10 is: 2,876,615,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,087,999.70 : 5,983,631,999.55 = 1,917,743,558.10 : x
  2. Step 2: Convert to fraction form
    3,989,087,999.70/5,983,631,999.55 = 1,917,743,558.10/x
  3. Step 3: Cross multiply
    3,989,087,999.70x = 5,983,631,999.55 × 1,917,743,558.10
  4. Step 4: Simplify right side
    3,989,087,999.70x = 11,475,071,721,178,034,176
  5. Step 5: Solve for x
    x = 11,475,071,721,178,034,176/3,989,087,999.70
  6. Step 6: Final answer
    x = 2,876,615,337.15

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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.