Home / 1,992,923,999.10-2,989,385,998.65-828,005,327.10

Finding the Fourth Proportional to 1,992,923,999.10, 2,989,385,998.65 and 828,005,327.10

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Solution

The fourth proportional to 1,992,923,999.10, 2,989,385,998.65 and 828,005,327.10 is: 1,242,007,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,923,999.10 : 2,989,385,998.65 = 828,005,327.10 : x
  2. Step 2: Convert to fraction form
    1,992,923,999.10/2,989,385,998.65 = 828,005,327.10/x
  3. Step 3: Cross multiply
    1,992,923,999.10x = 2,989,385,998.65 × 828,005,327.10
  4. Step 4: Simplify right side
    1,992,923,999.10x = 2,475,227,531,640,353,792
  5. Step 5: Solve for x
    x = 2,475,227,531,640,353,792/1,992,923,999.10
  6. Step 6: Final answer
    x = 1,242,007,990.65

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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.