Home / 1,990,665,327.80-2,987,490,983.70-1,020,817,724.60

Finding the Fourth Proportional to 1,990,665,327.80, 2,987,490,983.70 and 1,020,817,724.60

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Solution

The fourth proportional to 1,990,665,327.80, 2,987,490,983.70 and 1,020,817,724.60 is: 1,531,992,196.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,665,327.80 : 2,987,490,983.70 = 1,020,817,724.60 : x
  2. Step 2: Convert to fraction form
    1,990,665,327.80/2,987,490,983.70 = 1,020,817,724.60/x
  3. Step 3: Cross multiply
    1,990,665,327.80x = 2,987,490,983.70 × 1,020,817,724.60
  4. Step 4: Simplify right side
    1,990,665,327.80x = 3,049,683,748,243,649,536
  5. Step 5: Solve for x
    x = 3,049,683,748,243,649,536/1,990,665,327.80
  6. Step 6: Final answer
    x = 1,531,992,196.61

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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.