Finding the Fourth Proportional to 855,808,245.20, 1,181,020,092.36 and 464,667,669.20
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Solution
The fourth proportional to 855,808,245.20, 1,181,020,092.36 and 464,667,669.20 is: 641,243,942.99
Step by Step Solution
- Step 1: Write the proportion equation
855,808,245.20 : 1,181,020,092.36 = 464,667,669.20 : x - Step 2: Convert to fraction form
855,808,245.20/1,181,020,092.36 = 464,667,669.20/x - Step 3: Cross multiply
855,808,245.20x = 1,181,020,092.36 × 464,667,669.20 - Step 4: Simplify right side
855,808,245.20x = 548,781,853,595,289,856 - Step 5: Solve for x
x = 548,781,853,595,289,856/855,808,245.20 - Step 6: Final answer
x = 641,243,942.99
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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.