Finding the Fourth Proportional to 2,124,657,217.80, 3,186,985,826.70 and 744,292,364.40
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Solution
The fourth proportional to 2,124,657,217.80, 3,186,985,826.70 and 744,292,364.40 is: 1,116,438,546.60
Step by Step Solution
- Step 1: Write the proportion equation
2,124,657,217.80 : 3,186,985,826.70 = 744,292,364.40 : x - Step 2: Convert to fraction form
2,124,657,217.80/3,186,985,826.70 = 744,292,364.40/x - Step 3: Cross multiply
2,124,657,217.80x = 3,186,985,826.70 × 744,292,364.40 - Step 4: Simplify right side
2,124,657,217.80x = 2,372,049,216,263,831,552 - Step 5: Solve for x
x = 2,372,049,216,263,831,552/2,124,657,217.80 - Step 6: Final answer
x = 1,116,438,546.60
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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.