Finding the Fourth Proportional to 381,672,079.70, 572,508,119.55 and 260,739,727.70
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Solution
The fourth proportional to 381,672,079.70, 572,508,119.55 and 260,739,727.70 is: 391,109,591.55
Step by Step Solution
- Step 1: Write the proportion equation
381,672,079.70 : 572,508,119.55 = 260,739,727.70 : x - Step 2: Convert to fraction form
381,672,079.70/572,508,119.55 = 260,739,727.70/x - Step 3: Cross multiply
381,672,079.70x = 572,508,119.55 × 260,739,727.70 - Step 4: Simplify right side
381,672,079.70x = 149,275,611,197,506,016 - Step 5: Solve for x
x = 149,275,611,197,506,016/381,672,079.70 - Step 6: Final answer
x = 391,109,591.55
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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.