Finding the Fourth Proportional to 472,392,386.10, 708,588,579.15 and 342,390,107.70
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Solution
The fourth proportional to 472,392,386.10, 708,588,579.15 and 342,390,107.70 is: 513,585,161.55
Step by Step Solution
- Step 1: Write the proportion equation
472,392,386.10 : 708,588,579.15 = 342,390,107.70 : x - Step 2: Convert to fraction form
472,392,386.10/708,588,579.15 = 342,390,107.70/x - Step 3: Cross multiply
472,392,386.10x = 708,588,579.15 × 342,390,107.70 - Step 4: Simplify right side
472,392,386.10x = 242,613,719,930,158,464 - Step 5: Solve for x
x = 242,613,719,930,158,464/472,392,386.10 - Step 6: Final answer
x = 513,585,161.55
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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.