Finding the Fourth Proportional to 128,311,323.40, 192,466,985.10 and 37,444,097.80
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Solution
The fourth proportional to 128,311,323.40, 192,466,985.10 and 37,444,097.80 is: 56,166,146.70
Step by Step Solution
- Step 1: Write the proportion equation
128,311,323.40 : 192,466,985.10 = 37,444,097.80 : x - Step 2: Convert to fraction form
128,311,323.40/192,466,985.10 = 37,444,097.80/x - Step 3: Cross multiply
128,311,323.40x = 192,466,985.10 × 37,444,097.80 - Step 4: Simplify right side
128,311,323.40x = 7,206,752,613,355,542 - Step 5: Solve for x
x = 7,206,752,613,355,542/128,311,323.40 - Step 6: Final answer
x = 56,166,146.70
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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.