Finding the Fourth Proportional to 2,085,996,129.30, 3,129,414,097.95 and 612,133,089.30
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Solution
The fourth proportional to 2,085,996,129.30, 3,129,414,097.95 and 612,133,089.30 is: 918,322,854.28
Step by Step Solution
- Step 1: Write the proportion equation
2,085,996,129.30 : 3,129,414,097.95 = 612,133,089.30 : x - Step 2: Convert to fraction form
2,085,996,129.30/3,129,414,097.95 = 612,133,089.30/x - Step 3: Cross multiply
2,085,996,129.30x = 3,129,414,097.95 × 612,133,089.30 - Step 4: Simplify right side
2,085,996,129.30x = 1,915,617,919,477,105,920 - Step 5: Solve for x
x = 1,915,617,919,477,105,920/2,085,996,129.30 - Step 6: Final answer
x = 918,322,854.28
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1.5x scale
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.