Home / 1,397,898,261.60-2,099,870,701.20-989,751,573.60

Finding the Fourth Proportional to 1,397,898,261.60, 2,099,870,701.20 and 989,751,573.60

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Solution

The fourth proportional to 1,397,898,261.60, 2,099,870,701.20 and 989,751,573.60 is: 1,486,767,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,898,261.60 : 2,099,870,701.20 = 989,751,573.60 : x
  2. Step 2: Convert to fraction form
    1,397,898,261.60/2,099,870,701.20 = 989,751,573.60/x
  3. Step 3: Cross multiply
    1,397,898,261.60x = 2,099,870,701.20 × 989,751,573.60
  4. Step 4: Simplify right side
    1,397,898,261.60x = 2,078,350,330,869,235,456
  5. Step 5: Solve for x
    x = 2,078,350,330,869,235,456/1,397,898,261.60
  6. Step 6: Final answer
    x = 1,486,767,948.68

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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.