Finding the Fourth Proportional to 45,312,350.80, 67,992,145.80 and 19,755,943.60
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Solution
The fourth proportional to 45,312,350.80, 67,992,145.80 and 19,755,943.60 is: 29,644,213.42
Step by Step Solution
- Step 1: Write the proportion equation
45,312,350.80 : 67,992,145.80 = 19,755,943.60 : x - Step 2: Convert to fraction form
45,312,350.80/67,992,145.80 = 19,755,943.60/x - Step 3: Cross multiply
45,312,350.80x = 67,992,145.80 × 19,755,943.60 - Step 4: Simplify right side
45,312,350.80x = 1,343,248,997,667,777 - Step 5: Solve for x
x = 1,343,248,997,667,777/45,312,350.80 - Step 6: Final answer
x = 29,644,213.42
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1.5x scale
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.