Finding the Fourth Proportional to 423,267,782.99, 635,109,674.58 and 190,263,123.05
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Solution
The fourth proportional to 423,267,782.99, 635,109,674.58 and 190,263,123.05 is: 285,488,182.70
Step by Step Solution
- Step 1: Write the proportion equation
423,267,782.99 : 635,109,674.58 = 190,263,123.05 : x - Step 2: Convert to fraction form
423,267,782.99/635,109,674.58 = 190,263,123.05/x - Step 3: Cross multiply
423,267,782.99x = 635,109,674.58 × 190,263,123.05 - Step 4: Simplify right side
423,267,782.99x = 120,837,950,161,684,448 - Step 5: Solve for x
x = 120,837,950,161,684,448/423,267,782.99 - Step 6: Final answer
x = 285,488,182.70
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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.