Finding the Fourth Proportional to 212,592,001.80, 318,888,002.70 and 185,718,145.80
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Solution
The fourth proportional to 212,592,001.80, 318,888,002.70 and 185,718,145.80 is: 278,577,218.70
Step by Step Solution
- Step 1: Write the proportion equation
212,592,001.80 : 318,888,002.70 = 185,718,145.80 : x - Step 2: Convert to fraction form
212,592,001.80/318,888,002.70 = 185,718,145.80/x - Step 3: Cross multiply
212,592,001.80x = 318,888,002.70 × 185,718,145.80 - Step 4: Simplify right side
212,592,001.80x = 59,223,288,579,309,392 - Step 5: Solve for x
x = 59,223,288,579,309,392/212,592,001.80 - Step 6: Final answer
x = 278,577,218.70
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1.5x scale
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.