Finding the Fourth Proportional to 91,288,021,772.71, 125,977,618,247.08 and 50,642,934,301.12
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Solution
The fourth proportional to 91,288,021,772.71, 125,977,618,247.08 and 50,642,934,301.12 is: 69,887,331,551.37
Step by Step Solution
- Step 1: Write the proportion equation
91,288,021,772.71 : 125,977,618,247.08 = 50,642,934,301.12 : x - Step 2: Convert to fraction form
91,288,021,772.71/125,977,618,247.08 = 50,642,934,301.12/x - Step 3: Cross multiply
91,288,021,772.71x = 125,977,618,247.08 × 50,642,934,301.12 - Step 4: Simplify right side
91,288,021,772.71x = 6,379,876,244,298,449,027,072 - Step 5: Solve for x
x = 6,379,876,244,298,449,027,072/91,288,021,772.71 - Step 6: Final answer
x = 69,887,331,551.37
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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.