Finding the Fourth Proportional to 1,999,539,168.68, 2,999,505,878.94 and 689,268,724.04
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Solution
The fourth proportional to 1,999,539,168.68, 2,999,505,878.94 and 689,268,724.04 is: 1,033,971,038.08
Step by Step Solution
- Step 1: Write the proportion equation
1,999,539,168.68 : 2,999,505,878.94 = 689,268,724.04 : x - Step 2: Convert to fraction form
1,999,539,168.68/2,999,505,878.94 = 689,268,724.04/x - Step 3: Cross multiply
1,999,539,168.68x = 2,999,505,878.94 × 689,268,724.04 - Step 4: Simplify right side
1,999,539,168.68x = 2,067,465,589,927,452,416 - Step 5: Solve for x
x = 2,067,465,589,927,452,416/1,999,539,168.68 - Step 6: Final answer
x = 1,033,971,038.08
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.