Finding the Fourth Proportional to 1,207,652,000.30, 1,811,478,000.45 and 517,629,005.90
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Solution
The fourth proportional to 1,207,652,000.30, 1,811,478,000.45 and 517,629,005.90 is: 776,443,508.85
Step by Step Solution
- Step 1: Write the proportion equation
1,207,652,000.30 : 1,811,478,000.45 = 517,629,005.90 : x - Step 2: Convert to fraction form
1,207,652,000.30/1,811,478,000.45 = 517,629,005.90/x - Step 3: Cross multiply
1,207,652,000.30x = 1,811,478,000.45 × 517,629,005.90 - Step 4: Simplify right side
1,207,652,000.30x = 937,673,556,582,653,184 - Step 5: Solve for x
x = 937,673,556,582,653,184/1,207,652,000.30 - Step 6: Final answer
x = 776,443,508.85
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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.