Finding the Fourth Proportional to 189,283,320.80, 283,924,981.20 and 121,258,872.80
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Solution
The fourth proportional to 189,283,320.80, 283,924,981.20 and 121,258,872.80 is: 181,888,309.20
Step by Step Solution
- Step 1: Write the proportion equation
189,283,320.80 : 283,924,981.20 = 121,258,872.80 : x - Step 2: Convert to fraction form
189,283,320.80/283,924,981.20 = 121,258,872.80/x - Step 3: Cross multiply
189,283,320.80x = 283,924,981.20 × 121,258,872.80 - Step 4: Simplify right side
189,283,320.80x = 34,428,423,180,073,188 - Step 5: Solve for x
x = 34,428,423,180,073,188/189,283,320.80 - Step 6: Final answer
x = 181,888,309.20
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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.