Finding the Fourth Proportional to 551,428,938.10, 827,143,407.15 and 491,163,528.70
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Solution
The fourth proportional to 551,428,938.10, 827,143,407.15 and 491,163,528.70 is: 736,745,293.05
Step by Step Solution
- Step 1: Write the proportion equation
551,428,938.10 : 827,143,407.15 = 491,163,528.70 : x - Step 2: Convert to fraction form
551,428,938.10/827,143,407.15 = 491,163,528.70/x - Step 3: Cross multiply
551,428,938.10x = 827,143,407.15 × 491,163,528.70 - Step 4: Simplify right side
551,428,938.10x = 406,262,674,596,734,784 - Step 5: Solve for x
x = 406,262,674,596,734,784/551,428,938.10 - Step 6: Final answer
x = 736,745,293.05
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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.