Home / 21,068,539,598.40-31,570,560,770.40-19,907,589,019.20

Finding the Fourth Proportional to 21,068,539,598.40, 31,570,560,770.40 and 19,907,589,019.20

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Solution

The fourth proportional to 21,068,539,598.40, 31,570,560,770.40 and 19,907,589,019.20 is: 29,830,911,914.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068,539,598.40 : 31,570,560,770.40 = 19,907,589,019.20 : x
  2. Step 2: Convert to fraction form
    21,068,539,598.40/31,570,560,770.40 = 19,907,589,019.20/x
  3. Step 3: Cross multiply
    21,068,539,598.40x = 31,570,560,770.40 × 19,907,589,019.20
  4. Step 4: Simplify right side
    21,068,539,598.40x = 628,493,748,922,801,324,032
  5. Step 5: Solve for x
    x = 628,493,748,922,801,324,032/21,068,539,598.40
  6. Step 6: Final answer
    x = 29,830,911,914.30

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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.