Finding the Fourth Proportional to 154,051,965.18, 212,614,528.86 and 97,541,963.42
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Solution
The fourth proportional to 154,051,965.18, 212,614,528.86 and 97,541,963.42 is: 134,622,356.63
Step by Step Solution
- Step 1: Write the proportion equation
154,051,965.18 : 212,614,528.86 = 97,541,963.42 : x - Step 2: Convert to fraction form
154,051,965.18/212,614,528.86 = 97,541,963.42/x - Step 3: Cross multiply
154,051,965.18x = 212,614,528.86 × 97,541,963.42 - Step 4: Simplify right side
154,051,965.18x = 20,738,838,595,559,584 - Step 5: Solve for x
x = 20,738,838,595,559,584/154,051,965.18 - Step 6: Final answer
x = 134,622,356.63
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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.