Home / 1,939,039,886.90-2,908,968,375.96-628,839,777.50

Finding the Fourth Proportional to 1,939,039,886.90, 2,908,968,375.96 and 628,839,777.50

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Solution

The fourth proportional to 1,939,039,886.90, 2,908,968,375.96 and 628,839,777.50 is: 943,392,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,039,886.90 : 2,908,968,375.96 = 628,839,777.50 : x
  2. Step 2: Convert to fraction form
    1,939,039,886.90/2,908,968,375.96 = 628,839,777.50/x
  3. Step 3: Cross multiply
    1,939,039,886.90x = 2,908,968,375.96 × 628,839,777.50
  4. Step 4: Simplify right side
    1,939,039,886.90x = 1,829,275,026,300,495,360
  5. Step 5: Solve for x
    x = 1,829,275,026,300,495,360/1,939,039,886.90
  6. Step 6: Final answer
    x = 943,392,159.52

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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.