Finding the Fourth Proportional to 981,077,926.44, 1,471,024,147.97 and 390,958,950.99
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Solution
The fourth proportional to 981,077,926.44, 1,471,024,147.97 and 390,958,950.99 is: 586,202,219.28
Step by Step Solution
- Step 1: Write the proportion equation
981,077,926.44 : 1,471,024,147.97 = 390,958,950.99 : x - Step 2: Convert to fraction form
981,077,926.44/1,471,024,147.97 = 390,958,950.99/x - Step 3: Cross multiply
981,077,926.44x = 1,471,024,147.97 × 390,958,950.99 - Step 4: Simplify right side
981,077,926.44x = 575,110,057,769,354,944 - Step 5: Solve for x
x = 575,110,057,769,354,944/981,077,926.44 - Step 6: Final answer
x = 586,202,219.28
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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.