Finding the Fourth Proportional to 289,385,549.20, 434,582,208.60 and 153,336,653.20
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Solution
The fourth proportional to 289,385,549.20, 434,582,208.60 and 153,336,653.20 is: 230,271,973.12
Step by Step Solution
- Step 1: Write the proportion equation
289,385,549.20 : 434,582,208.60 = 153,336,653.20 : x - Step 2: Convert to fraction form
289,385,549.20/434,582,208.60 = 153,336,653.20/x - Step 3: Cross multiply
289,385,549.20x = 434,582,208.60 × 153,336,653.20 - Step 4: Simplify right side
289,385,549.20x = 66,637,381,406,988,256 - Step 5: Solve for x
x = 66,637,381,406,988,256/289,385,549.20 - Step 6: Final answer
x = 230,271,973.12
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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.