Finding the Fourth Proportional to 905,424,165.30, 1,358,136,247.95 and 492,175,643.70
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Solution
The fourth proportional to 905,424,165.30, 1,358,136,247.95 and 492,175,643.70 is: 738,263,465.55
Step by Step Solution
- Step 1: Write the proportion equation
905,424,165.30 : 1,358,136,247.95 = 492,175,643.70 : x - Step 2: Convert to fraction form
905,424,165.30/1,358,136,247.95 = 492,175,643.70/x - Step 3: Cross multiply
905,424,165.30x = 1,358,136,247.95 × 492,175,643.70 - Step 4: Simplify right side
905,424,165.30x = 668,441,582,067,094,016 - Step 5: Solve for x
x = 668,441,582,067,094,016/905,424,165.30 - Step 6: Final answer
x = 738,263,465.55
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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.