Finding the Fourth Proportional to 1,643,921,232.12, 2,465,881,800.53 and 758,344,578
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Solution
The fourth proportional to 1,643,921,232.12, 2,465,881,800.53 and 758,344,578 is: 1,137,516,845.02
Step by Step Solution
- Step 1: Write the proportion equation
1,643,921,232.12 : 2,465,881,800.53 = 758,344,578 : x - Step 2: Convert to fraction form
1,643,921,232.12/2,465,881,800.53 = 758,344,578/x - Step 3: Cross multiply
1,643,921,232.12x = 2,465,881,800.53 × 758,344,578 - Step 4: Simplify right side
1,643,921,232.12x = 1,869,988,093,420,803,072 - Step 5: Solve for x
x = 1,869,988,093,420,803,072/1,643,921,232.12 - Step 6: Final answer
x = 1,137,516,845.02
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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.