Finding the Fourth Proportional to 988,951,113.18, 1,482,298,268.94 and 398,363,447.97
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Solution
The fourth proportional to 988,951,113.18, 1,482,298,268.94 and 398,363,447.97 is: 597,090,636.20
Step by Step Solution
- Step 1: Write the proportion equation
988,951,113.18 : 1,482,298,268.94 = 398,363,447.97 : x - Step 2: Convert to fraction form
988,951,113.18/1,482,298,268.94 = 398,363,447.97/x - Step 3: Cross multiply
988,951,113.18x = 1,482,298,268.94 × 398,363,447.97 - Step 4: Simplify right side
988,951,113.18x = 590,493,449,334,900,864 - Step 5: Solve for x
x = 590,493,449,334,900,864/988,951,113.18 - Step 6: Final answer
x = 597,090,636.20
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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.