Finding the Fourth Proportional to 1,251,462,194.20, 1,727,019,719.79 and 679,245,451.80
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Solution
The fourth proportional to 1,251,462,194.20, 1,727,019,719.79 and 679,245,451.80 is: 937,359,750.28
Step by Step Solution
- Step 1: Write the proportion equation
1,251,462,194.20 : 1,727,019,719.79 = 679,245,451.80 : x - Step 2: Convert to fraction form
1,251,462,194.20/1,727,019,719.79 = 679,245,451.80/x - Step 3: Cross multiply
1,251,462,194.20x = 1,727,019,719.79 × 679,245,451.80 - Step 4: Simplify right side
1,251,462,194.20x = 1,173,070,289,840,720,128 - Step 5: Solve for x
x = 1,173,070,289,840,720,128/1,251,462,194.20 - Step 6: Final answer
x = 937,359,750.28
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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.