Finding the Fourth Proportional to 694,537,547.30, 958,426,617.21 and 412,292,052.62
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Solution
The fourth proportional to 694,537,547.30, 958,426,617.21 and 412,292,052.62 is: 568,942,138.31
Step by Step Solution
- Step 1: Write the proportion equation
694,537,547.30 : 958,426,617.21 = 412,292,052.62 : x - Step 2: Convert to fraction form
694,537,547.30/958,426,617.21 = 412,292,052.62/x - Step 3: Cross multiply
694,537,547.30x = 958,426,617.21 × 412,292,052.62 - Step 4: Simplify right side
694,537,547.30x = 395,151,677,295,153,920 - Step 5: Solve for x
x = 395,151,677,295,153,920/694,537,547.30 - Step 6: Final answer
x = 568,942,138.31
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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.