Finding the Fourth Proportional to 387,240,168.12, 534,375,882.92 and 211,024,407.75
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Solution
The fourth proportional to 387,240,168.12, 534,375,882.92 and 211,024,407.75 is: 291,205,209.31
Step by Step Solution
- Step 1: Write the proportion equation
387,240,168.12 : 534,375,882.92 = 211,024,407.75 : x - Step 2: Convert to fraction form
387,240,168.12/534,375,882.92 = 211,024,407.75/x - Step 3: Cross multiply
387,240,168.12x = 534,375,882.92 × 211,024,407.75 - Step 4: Simplify right side
387,240,168.12x = 112,766,354,210,603,184 - Step 5: Solve for x
x = 112,766,354,210,603,184/387,240,168.12 - Step 6: Final answer
x = 291,205,209.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.