Finding the Fourth Proportional to 780,391,592.08, 1,076,841,416.16 and 427,874,819.68
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Solution
The fourth proportional to 780,391,592.08, 1,076,841,416.16 and 427,874,819.68 is: 590,412,981.69
Step by Step Solution
- Step 1: Write the proportion equation
780,391,592.08 : 1,076,841,416.16 = 427,874,819.68 : x - Step 2: Convert to fraction form
780,391,592.08/1,076,841,416.16 = 427,874,819.68/x - Step 3: Cross multiply
780,391,592.08x = 1,076,841,416.16 × 427,874,819.68 - Step 4: Simplify right side
780,391,592.08x = 460,753,326,763,415,872 - Step 5: Solve for x
x = 460,753,326,763,415,872/780,391,592.08 - Step 6: Final answer
x = 590,412,981.69
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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.