Finding the Fourth Proportional to 129,035,916.80, 193,553,875.20 and 88,161,113.60
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Solution
The fourth proportional to 129,035,916.80, 193,553,875.20 and 88,161,113.60 is: 132,241,670.40
Step by Step Solution
- Step 1: Write the proportion equation
129,035,916.80 : 193,553,875.20 = 88,161,113.60 : x - Step 2: Convert to fraction form
129,035,916.80/193,553,875.20 = 88,161,113.60/x - Step 3: Cross multiply
129,035,916.80x = 193,553,875.20 × 88,161,113.60 - Step 4: Simplify right side
129,035,916.80x = 17,063,925,179,227,420 - Step 5: Solve for x
x = 17,063,925,179,227,420/129,035,916.80 - Step 6: Final answer
x = 132,241,670.40
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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.