Finding the Fourth Proportional to 235,374,397.75, 324,819,643.62 and 129,539,994.58
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Solution
The fourth proportional to 235,374,397.75, 324,819,643.62 and 129,539,994.58 is: 178,766,829.68
Step by Step Solution
- Step 1: Write the proportion equation
235,374,397.75 : 324,819,643.62 = 129,539,994.58 : x - Step 2: Convert to fraction form
235,374,397.75/324,819,643.62 = 129,539,994.58/x - Step 3: Cross multiply
235,374,397.75x = 324,819,643.62 × 129,539,994.58 - Step 4: Simplify right side
235,374,397.75x = 42,077,134,874,012,328 - Step 5: Solve for x
x = 42,077,134,874,012,328/235,374,397.75 - Step 6: Final answer
x = 178,766,829.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.