Finding the Fourth Proportional to 649,892,619.60, 975,304,370.99 and 276,662,178.78
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Solution
The fourth proportional to 649,892,619.60, 975,304,370.99 and 276,662,178.78 is: 415,191,408.73
Step by Step Solution
- Step 1: Write the proportion equation
649,892,619.60 : 975,304,370.99 = 276,662,178.78 : x - Step 2: Convert to fraction form
649,892,619.60/975,304,370.99 = 276,662,178.78/x - Step 3: Cross multiply
649,892,619.60x = 975,304,370.99 × 276,662,178.78 - Step 4: Simplify right side
649,892,619.60x = 269,829,832,251,750,816 - Step 5: Solve for x
x = 269,829,832,251,750,816/649,892,619.60 - Step 6: Final answer
x = 415,191,408.73
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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.