Finding the Fourth Proportional to 824,402,951.70, 1,236,604,427.55 and 279,144,485.70
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Solution
The fourth proportional to 824,402,951.70, 1,236,604,427.55 and 279,144,485.70 is: 418,716,728.55
Step by Step Solution
- Step 1: Write the proportion equation
824,402,951.70 : 1,236,604,427.55 = 279,144,485.70 : x - Step 2: Convert to fraction form
824,402,951.70/1,236,604,427.55 = 279,144,485.70/x - Step 3: Cross multiply
824,402,951.70x = 1,236,604,427.55 × 279,144,485.70 - Step 4: Simplify right side
824,402,951.70x = 345,191,306,942,787,648 - Step 5: Solve for x
x = 345,191,306,942,787,648/824,402,951.70 - Step 6: Final answer
x = 418,716,728.55
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Similar ratio
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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.