Finding the Fourth Proportional to 212,598,444.05, 318,828,730.99 and 81,433,740.07
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Solution
The fourth proportional to 212,598,444.05, 318,828,730.99 and 81,433,740.07 is: 122,124,205.20
Step by Step Solution
- Step 1: Write the proportion equation
212,598,444.05 : 318,828,730.99 = 81,433,740.07 : x - Step 2: Convert to fraction form
212,598,444.05/318,828,730.99 = 81,433,740.07/x - Step 3: Cross multiply
212,598,444.05x = 318,828,730.99 × 81,433,740.07 - Step 4: Simplify right side
212,598,444.05x = 25,963,416,006,287,612 - Step 5: Solve for x
x = 25,963,416,006,287,612/212,598,444.05 - Step 6: Final answer
x = 122,124,205.20
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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.