Finding the Fourth Proportional to 1,716,863,276.80, 2,575,294,915.20 and 424,398,764.80
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Solution
The fourth proportional to 1,716,863,276.80, 2,575,294,915.20 and 424,398,764.80 is: 636,598,147.20
Step by Step Solution
- Step 1: Write the proportion equation
1,716,863,276.80 : 2,575,294,915.20 = 424,398,764.80 : x - Step 2: Convert to fraction form
1,716,863,276.80/2,575,294,915.20 = 424,398,764.80/x - Step 3: Cross multiply
1,716,863,276.80x = 2,575,294,915.20 × 424,398,764.80 - Step 4: Simplify right side
1,716,863,276.80x = 1,092,951,981,006,600,704 - Step 5: Solve for x
x = 1,092,951,981,006,600,704/1,716,863,276.80 - Step 6: Final answer
x = 636,598,147.20
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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.