Finding the Fourth Proportional to 1,153,429,253.03, 1,591,740,011.67 and 624,793,239.12
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Solution
The fourth proportional to 1,153,429,253.03, 1,591,740,011.67 and 624,793,239.12 is: 862,218,809.79
Step by Step Solution
- Step 1: Write the proportion equation
1,153,429,253.03 : 1,591,740,011.67 = 624,793,239.12 : x - Step 2: Convert to fraction form
1,153,429,253.03/1,591,740,011.67 = 624,793,239.12/x - Step 3: Cross multiply
1,153,429,253.03x = 1,591,740,011.67 × 624,793,239.12 - Step 4: Simplify right side
1,153,429,253.03x = 994,508,397,728,205,952 - Step 5: Solve for x
x = 994,508,397,728,205,952/1,153,429,253.03 - Step 6: Final answer
x = 862,218,809.79
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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.