Finding the Fourth Proportional to 890,139,129.84, 1,335,401,514.36 and 268,302,344.94
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Solution
The fourth proportional to 890,139,129.84, 1,335,401,514.36 and 268,302,344.94 is: 402,511,636.36
Step by Step Solution
- Step 1: Write the proportion equation
890,139,129.84 : 1,335,401,514.36 = 268,302,344.94 : x - Step 2: Convert to fraction form
890,139,129.84/1,335,401,514.36 = 268,302,344.94/x - Step 3: Cross multiply
890,139,129.84x = 1,335,401,514.36 × 268,302,344.94 - Step 4: Simplify right side
890,139,129.84x = 358,291,357,739,215,040 - Step 5: Solve for x
x = 358,291,357,739,215,040/890,139,129.84 - Step 6: Final answer
x = 402,511,636.36
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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.