Finding the Fourth Proportional to 94,153,365,470.78, 129,927,901,893.99 and 55,584,709,007.78
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Solution
The fourth proportional to 94,153,365,470.78, 129,927,901,893.99 and 55,584,709,007.78 is: 76,704,689,021.55
Step by Step Solution
- Step 1: Write the proportion equation
94,153,365,470.78 : 129,927,901,893.99 = 55,584,709,007.78 : x - Step 2: Convert to fraction form
94,153,365,470.78/129,927,901,893.99 = 55,584,709,007.78/x - Step 3: Cross multiply
94,153,365,470.78x = 129,927,901,893.99 × 55,584,709,007.78 - Step 4: Simplify right side
94,153,365,470.78x = 7,222,004,618,768,822,566,912 - Step 5: Solve for x
x = 7,222,004,618,768,822,566,912/94,153,365,470.78 - Step 6: Final answer
x = 76,704,689,021.55
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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.