Finding the Fourth Proportional to 339,543,690.09, 509,314,899.87 and 106,392,251.07
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Solution
The fourth proportional to 339,543,690.09, 509,314,899.87 and 106,392,251.07 is: 159,588,177.55
Step by Step Solution
- Step 1: Write the proportion equation
339,543,690.09 : 509,314,899.87 = 106,392,251.07 : x - Step 2: Convert to fraction form
339,543,690.09/509,314,899.87 = 106,392,251.07/x - Step 3: Cross multiply
339,543,690.09x = 509,314,899.87 × 106,392,251.07 - Step 4: Simplify right side
339,543,690.09x = 54,187,158,700,660,944 - Step 5: Solve for x
x = 54,187,158,700,660,944/339,543,690.09 - Step 6: Final answer
x = 159,588,177.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.