Finding the Fourth Proportional to 402,012,361.12, 602,890,704.24 and 129,319,653.28
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Solution
The fourth proportional to 402,012,361.12, 602,890,704.24 and 129,319,653.28 is: 193,938,357.07
Step by Step Solution
- Step 1: Write the proportion equation
402,012,361.12 : 602,890,704.24 = 129,319,653.28 : x - Step 2: Convert to fraction form
402,012,361.12/602,890,704.24 = 129,319,653.28/x - Step 3: Cross multiply
402,012,361.12x = 602,890,704.24 × 129,319,653.28 - Step 4: Simplify right side
402,012,361.12x = 77,965,616,838,051,824 - Step 5: Solve for x
x = 77,965,616,838,051,824/402,012,361.12 - Step 6: Final answer
x = 193,938,357.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.