Finding the Fourth Proportional to 1,068,290,214.92, 1,474,249,152.51 and 591,988,539.81
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Solution
The fourth proportional to 1,068,290,214.92, 1,474,249,152.51 and 591,988,539.81 is: 816,948,981.58
Step by Step Solution
- Step 1: Write the proportion equation
1,068,290,214.92 : 1,474,249,152.51 = 591,988,539.81 : x - Step 2: Convert to fraction form
1,068,290,214.92/1,474,249,152.51 = 591,988,539.81/x - Step 3: Cross multiply
1,068,290,214.92x = 1,474,249,152.51 × 591,988,539.81 - Step 4: Simplify right side
1,068,290,214.92x = 872,738,603,110,524,800 - Step 5: Solve for x
x = 872,738,603,110,524,800/1,068,290,214.92 - Step 6: Final answer
x = 816,948,981.58
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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.