Finding the Fourth Proportional to 211,782,157.12, 292,168,719.39 and 132,259,159.99
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Solution
The fourth proportional to 211,782,157.12, 292,168,719.39 and 132,259,159.99 is: 182,461,024.70
Step by Step Solution
- Step 1: Write the proportion equation
211,782,157.12 : 292,168,719.39 = 132,259,159.99 : x - Step 2: Convert to fraction form
211,782,157.12/292,168,719.39 = 132,259,159.99/x - Step 3: Cross multiply
211,782,157.12x = 292,168,719.39 × 132,259,159.99 - Step 4: Simplify right side
211,782,157.12x = 38,641,989,401,875,424 - Step 5: Solve for x
x = 38,641,989,401,875,424/211,782,157.12 - Step 6: Final answer
x = 182,461,024.70
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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.