Finding the Fourth Proportional to 151,516,047.58, 209,092,207.67 and 81,901,428.28
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Solution
The fourth proportional to 151,516,047.58, 209,092,207.67 and 81,901,428.28 is: 113,024,004.55
Step by Step Solution
- Step 1: Write the proportion equation
151,516,047.58 : 209,092,207.67 = 81,901,428.28 : x - Step 2: Convert to fraction form
151,516,047.58/209,092,207.67 = 81,901,428.28/x - Step 3: Cross multiply
151,516,047.58x = 209,092,207.67 × 81,901,428.28 - Step 4: Simplify right side
151,516,047.58x = 17,124,950,450,391,370 - Step 5: Solve for x
x = 17,124,950,450,391,370/151,516,047.58 - Step 6: Final answer
x = 113,024,004.55
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1.5x scale
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.