Finding the Fourth Proportional to 436,726,929.70, 655,090,394.55 and 207,144,417.70
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Solution
The fourth proportional to 436,726,929.70, 655,090,394.55 and 207,144,417.70 is: 310,716,626.55
Step by Step Solution
- Step 1: Write the proportion equation
436,726,929.70 : 655,090,394.55 = 207,144,417.70 : x - Step 2: Convert to fraction form
436,726,929.70/655,090,394.55 = 207,144,417.70/x - Step 3: Cross multiply
436,726,929.70x = 655,090,394.55 × 207,144,417.70 - Step 4: Simplify right side
436,726,929.70x = 135,698,318,319,922,992 - Step 5: Solve for x
x = 135,698,318,319,922,992/436,726,929.70 - Step 6: Final answer
x = 310,716,626.55
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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.