Home / 1,087,522,728.40-1,631,284,092.60-978,683,611.60

Finding the Fourth Proportional to 1,087,522,728.40, 1,631,284,092.60 and 978,683,611.60

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Solution

The fourth proportional to 1,087,522,728.40, 1,631,284,092.60 and 978,683,611.60 is: 1,468,025,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,522,728.40 : 1,631,284,092.60 = 978,683,611.60 : x
  2. Step 2: Convert to fraction form
    1,087,522,728.40/1,631,284,092.60 = 978,683,611.60/x
  3. Step 3: Cross multiply
    1,087,522,728.40x = 1,631,284,092.60 × 978,683,611.60
  4. Step 4: Simplify right side
    1,087,522,728.40x = 1,596,511,007,291,396,864
  5. Step 5: Solve for x
    x = 1,596,511,007,291,396,864/1,087,522,728.40
  6. Step 6: Final answer
    x = 1,468,025,417.40

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1.5x scale

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.