Finding the Fourth Proportional to 151,612,134.28, 209,224,739.94 and 81,997,513.48
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Solution
The fourth proportional to 151,612,134.28, 209,224,739.94 and 81,997,513.48 is: 113,156,565.70
Step by Step Solution
- Step 1: Write the proportion equation
151,612,134.28 : 209,224,739.94 = 81,997,513.48 : x - Step 2: Convert to fraction form
151,612,134.28/209,224,739.94 = 81,997,513.48/x - Step 3: Cross multiply
151,612,134.28x = 209,224,739.94 × 81,997,513.48 - Step 4: Simplify right side
151,612,134.28x = 17,155,908,433,579,646 - Step 5: Solve for x
x = 17,155,908,433,579,646/151,612,134.28 - Step 6: Final answer
x = 113,156,565.70
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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.