Finding the Fourth Proportional to 153,247,711.87, 211,478,891.31 and 83,633,590.95
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Solution
The fourth proportional to 153,247,711.87, 211,478,891.31 and 83,633,590.95 is: 115,412,744.99
Step by Step Solution
- Step 1: Write the proportion equation
153,247,711.87 : 211,478,891.31 = 83,633,590.95 : x - Step 2: Convert to fraction form
153,247,711.87/211,478,891.31 = 83,633,590.95/x - Step 3: Cross multiply
153,247,711.87x = 211,478,891.31 × 83,633,590.95 - Step 4: Simplify right side
153,247,711.87x = 17,686,739,090,380,050 - Step 5: Solve for x
x = 17,686,739,090,380,050/153,247,711.87 - Step 6: Final answer
x = 115,412,744.99
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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.