Finding the Fourth Proportional to 2,209,516,972.18, 3,314,712,064.11 and 810,514,236.86
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Solution
The fourth proportional to 2,209,516,972.18, 3,314,712,064.11 and 810,514,236.86 is: 1,215,931,514.84
Step by Step Solution
- Step 1: Write the proportion equation
2,209,516,972.18 : 3,314,712,064.11 = 810,514,236.86 : x - Step 2: Convert to fraction form
2,209,516,972.18/3,314,712,064.11 = 810,514,236.86/x - Step 3: Cross multiply
2,209,516,972.18x = 3,314,712,064.11 × 810,514,236.86 - Step 4: Simplify right side
2,209,516,972.18x = 2,686,621,319,052,752,384 - Step 5: Solve for x
x = 2,686,621,319,052,752,384/2,209,516,972.18 - Step 6: Final answer
x = 1,215,931,514.84
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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.