Finding the Fourth Proportional to 503,403,495.57, 694,731,739.05 and 305,173,345.37
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Solution
The fourth proportional to 503,403,495.57, 694,731,739.05 and 305,173,345.37 is: 421,160,382.88
Step by Step Solution
- Step 1: Write the proportion equation
503,403,495.57 : 694,731,739.05 = 305,173,345.37 : x - Step 2: Convert to fraction form
503,403,495.57/694,731,739.05 = 305,173,345.37/x - Step 3: Cross multiply
503,403,495.57x = 694,731,739.05 × 305,173,345.37 - Step 4: Simplify right side
503,403,495.57x = 212,013,608,937,132,704 - Step 5: Solve for x
x = 212,013,608,937,132,704/503,403,495.57 - Step 6: Final answer
x = 421,160,382.88
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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.