Finding the Fourth Proportional to 618,509,349.09, 853,520,940.77 and 340,048,845.09
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Solution
The fourth proportional to 618,509,349.09, 853,520,940.77 and 340,048,845.09 is: 469,255,332.35
Step by Step Solution
- Step 1: Write the proportion equation
618,509,349.09 : 853,520,940.77 = 340,048,845.09 : x - Step 2: Convert to fraction form
618,509,349.09/853,520,940.77 = 340,048,845.09/x - Step 3: Cross multiply
618,509,349.09x = 853,520,940.77 × 340,048,845.09 - Step 4: Simplify right side
618,509,349.09x = 290,238,810,167,268,544 - Step 5: Solve for x
x = 290,238,810,167,268,544/618,509,349.09 - Step 6: Final answer
x = 469,255,332.35
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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.