Finding the Fourth Proportional to 1,906,039,172.54, 2,629,518,140.10 and 1,190,332,197.14
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Solution
The fourth proportional to 1,906,039,172.54, 2,629,518,140.10 and 1,190,332,197.14 is: 1,642,148,886.66
Step by Step Solution
- Step 1: Write the proportion equation
1,906,039,172.54 : 2,629,518,140.10 = 1,190,332,197.14 : x - Step 2: Convert to fraction form
1,906,039,172.54/2,629,518,140.10 = 1,190,332,197.14/x - Step 3: Cross multiply
1,906,039,172.54x = 2,629,518,140.10 × 1,190,332,197.14 - Step 4: Simplify right side
1,906,039,172.54x = 3,130,000,105,124,719,616 - Step 5: Solve for x
x = 3,130,000,105,124,719,616/1,906,039,172.54 - Step 6: Final answer
x = 1,642,148,886.66
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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.