Finding the Fourth Proportional to 28,331,399.30, 42,497,098.95 and 9,175,903.70
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Solution
The fourth proportional to 28,331,399.30, 42,497,098.95 and 9,175,903.70 is: 13,763,855.55
Step by Step Solution
- Step 1: Write the proportion equation
28,331,399.30 : 42,497,098.95 = 9,175,903.70 : x - Step 2: Convert to fraction form
28,331,399.30/42,497,098.95 = 9,175,903.70/x - Step 3: Cross multiply
28,331,399.30x = 42,497,098.95 × 9,175,903.70 - Step 4: Simplify right side
28,331,399.30x = 389,949,287,494,571.12 - Step 5: Solve for x
x = 389,949,287,494,571.12/28,331,399.30 - Step 6: Final answer
x = 13,763,855.55
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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.