Finding the Fourth Proportional to 154,341,670.40, 212,983,683.36 and 91,620,449.36
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Solution
The fourth proportional to 154,341,670.40, 212,983,683.36 and 91,620,449.36 is: 126,431,576.94
Step by Step Solution
- Step 1: Write the proportion equation
154,341,670.40 : 212,983,683.36 = 91,620,449.36 : x - Step 2: Convert to fraction form
154,341,670.40/212,983,683.36 = 91,620,449.36/x - Step 3: Cross multiply
154,341,670.40x = 212,983,683.36 × 91,620,449.36 - Step 4: Simplify right side
154,341,670.40x = 19,513,660,775,791,156 - Step 5: Solve for x
x = 19,513,660,775,791,156/154,341,670.40 - Step 6: Final answer
x = 126,431,576.94
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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.