Finding the Fourth Proportional to 144,009,121.79, 198,669,257.96 and 84,440,012.18
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Solution
The fourth proportional to 144,009,121.79, 198,669,257.96 and 84,440,012.18 is: 116,490,083.07
Step by Step Solution
- Step 1: Write the proportion equation
144,009,121.79 : 198,669,257.96 = 84,440,012.18 : x - Step 2: Convert to fraction form
144,009,121.79/198,669,257.96 = 84,440,012.18/x - Step 3: Cross multiply
144,009,121.79x = 198,669,257.96 × 84,440,012.18 - Step 4: Simplify right side
144,009,121.79x = 16,775,634,560,518,416 - Step 5: Solve for x
x = 16,775,634,560,518,416/144,009,121.79 - Step 6: Final answer
x = 116,490,083.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.