Home / 1,990,656,231.60-2,985,984,347.40-1,021,405,825.20

Finding the Fourth Proportional to 1,990,656,231.60, 2,985,984,347.40 and 1,021,405,825.20

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Solution

The fourth proportional to 1,990,656,231.60, 2,985,984,347.40 and 1,021,405,825.20 is: 1,532,108,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,656,231.60 : 2,985,984,347.40 = 1,021,405,825.20 : x
  2. Step 2: Convert to fraction form
    1,990,656,231.60/2,985,984,347.40 = 1,021,405,825.20/x
  3. Step 3: Cross multiply
    1,990,656,231.60x = 2,985,984,347.40 × 1,021,405,825.20
  4. Step 4: Simplify right side
    1,990,656,231.60x = 3,049,901,806,390,380,544
  5. Step 5: Solve for x
    x = 3,049,901,806,390,380,544/1,990,656,231.60
  6. Step 6: Final answer
    x = 1,532,108,737.80

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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.