Finding the Fourth Proportional to 1,267,889,198.48, 1,749,689,152.23 and 703,374,094.70
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Solution
The fourth proportional to 1,267,889,198.48, 1,749,689,152.23 and 703,374,094.70 is: 970,657,392.56
Step by Step Solution
- Step 1: Write the proportion equation
1,267,889,198.48 : 1,749,689,152.23 = 703,374,094.70 : x - Step 2: Convert to fraction form
1,267,889,198.48/1,749,689,152.23 = 703,374,094.70/x - Step 3: Cross multiply
1,267,889,198.48x = 1,749,689,152.23 × 703,374,094.70 - Step 4: Simplify right side
1,267,889,198.48x = 1,230,686,023,456,186,880 - Step 5: Solve for x
x = 1,230,686,023,456,186,880/1,267,889,198.48 - Step 6: Final answer
x = 970,657,392.56
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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.