Home / 1,685,763,019.20-2,528,644,528.80-1,659,934,986.60

Finding the Fourth Proportional to 1,685,763,019.20, 2,528,644,528.80 and 1,659,934,986.60

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Solution

The fourth proportional to 1,685,763,019.20, 2,528,644,528.80 and 1,659,934,986.60 is: 2,489,902,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,763,019.20 : 2,528,644,528.80 = 1,659,934,986.60 : x
  2. Step 2: Convert to fraction form
    1,685,763,019.20/2,528,644,528.80 = 1,659,934,986.60/x
  3. Step 3: Cross multiply
    1,685,763,019.20x = 2,528,644,528.80 × 1,659,934,986.60
  4. Step 4: Simplify right side
    1,685,763,019.20x = 4,197,385,522,029,791,232
  5. Step 5: Solve for x
    x = 4,197,385,522,029,791,232/1,685,763,019.20
  6. Step 6: Final answer
    x = 2,489,902,479.90

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Double scale
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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.