Finding the Fourth Proportional to 31,163,497.80, 46,745,246.70 and 19,684,372.20
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Solution
The fourth proportional to 31,163,497.80, 46,745,246.70 and 19,684,372.20 is: 29,526,558.30
Step by Step Solution
- Step 1: Write the proportion equation
31,163,497.80 : 46,745,246.70 = 19,684,372.20 : x - Step 2: Convert to fraction form
31,163,497.80/46,745,246.70 = 19,684,372.20/x - Step 3: Cross multiply
31,163,497.80x = 46,745,246.70 × 19,684,372.20 - Step 4: Simplify right side
31,163,497.80x = 920,150,834,623,621.75 - Step 5: Solve for x
x = 920,150,834,623,621.75/31,163,497.80 - Step 6: Final answer
x = 29,526,558.30
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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.