Finding the Fourth Proportional to 247,938,881.68, 342,145,382.17 and 134,908,840.20
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Solution
The fourth proportional to 247,938,881.68, 342,145,382.17 and 134,908,840.20 is: 186,168,608.88
Step by Step Solution
- Step 1: Write the proportion equation
247,938,881.68 : 342,145,382.17 = 134,908,840.20 : x - Step 2: Convert to fraction form
247,938,881.68/342,145,382.17 = 134,908,840.20/x - Step 3: Cross multiply
247,938,881.68x = 342,145,382.17 × 134,908,840.20 - Step 4: Simplify right side
247,938,881.68x = 46,158,436,687,665,912 - Step 5: Solve for x
x = 46,158,436,687,665,912/247,938,881.68 - Step 6: Final answer
x = 186,168,608.88
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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.