Finding the Fourth Proportional to 77,981,788.05, 107,622,086.99 and 43,174,478.84
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Solution
The fourth proportional to 77,981,788.05, 107,622,086.99 and 43,174,478.84 is: 59,584,777.85
Step by Step Solution
- Step 1: Write the proportion equation
77,981,788.05 : 107,622,086.99 = 43,174,478.84 : x - Step 2: Convert to fraction form
77,981,788.05/107,622,086.99 = 43,174,478.84/x - Step 3: Cross multiply
77,981,788.05x = 107,622,086.99 × 43,174,478.84 - Step 4: Simplify right side
77,981,788.05x = 4,646,527,516,712,412 - Step 5: Solve for x
x = 4,646,527,516,712,412/77,981,788.05 - Step 6: Final answer
x = 59,584,777.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.