Finding the Fourth Proportional to 454,691,853.36, 627,331,519.80 and 278,295,954.48
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Solution
The fourth proportional to 454,691,853.36, 627,331,519.80 and 278,295,954.48 is: 383,960,747.90
Step by Step Solution
- Step 1: Write the proportion equation
454,691,853.36 : 627,331,519.80 = 278,295,954.48 : x - Step 2: Convert to fraction form
454,691,853.36/627,331,519.80 = 278,295,954.48/x - Step 3: Cross multiply
454,691,853.36x = 627,331,519.80 × 278,295,954.48 - Step 4: Simplify right side
454,691,853.36x = 174,583,824,078,130,016 - Step 5: Solve for x
x = 174,583,824,078,130,016/454,691,853.36 - Step 6: Final answer
x = 383,960,747.90
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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.