Finding the Fourth Proportional to 614,178,701.10, 921,268,051.65 and 381,726,407.70
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Solution
The fourth proportional to 614,178,701.10, 921,268,051.65 and 381,726,407.70 is: 572,589,611.55
Step by Step Solution
- Step 1: Write the proportion equation
614,178,701.10 : 921,268,051.65 = 381,726,407.70 : x - Step 2: Convert to fraction form
614,178,701.10/921,268,051.65 = 381,726,407.70/x - Step 3: Cross multiply
614,178,701.10x = 921,268,051.65 × 381,726,407.70 - Step 4: Simplify right side
614,178,701.10x = 351,672,343,885,132,544 - Step 5: Solve for x
x = 351,672,343,885,132,544/614,178,701.10 - Step 6: Final answer
x = 572,589,611.55
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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.