Finding the Fourth Proportional to 664,760,130.58, 917,482,894.68 and 386,463,079.32
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Solution
The fourth proportional to 664,760,130.58, 917,482,894.68 and 386,463,079.32 is: 533,385,274.46
Step by Step Solution
- Step 1: Write the proportion equation
664,760,130.58 : 917,482,894.68 = 386,463,079.32 : x - Step 2: Convert to fraction form
664,760,130.58/917,482,894.68 = 386,463,079.32/x - Step 3: Cross multiply
664,760,130.58x = 917,482,894.68 × 386,463,079.32 - Step 4: Simplify right side
664,760,130.58x = 354,573,264,701,460,032 - Step 5: Solve for x
x = 354,573,264,701,460,032/664,760,130.58 - Step 6: Final answer
x = 533,385,274.46
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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.