Finding the Fourth Proportional to 1,042,704,842.16, 1,438,933,625.28 and 572,836,601.28
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Solution
The fourth proportional to 1,042,704,842.16, 1,438,933,625.28 and 572,836,601.28 is: 790,515,027.88
Step by Step Solution
- Step 1: Write the proportion equation
1,042,704,842.16 : 1,438,933,625.28 = 572,836,601.28 : x - Step 2: Convert to fraction form
1,042,704,842.16/1,438,933,625.28 = 572,836,601.28/x - Step 3: Cross multiply
1,042,704,842.16x = 1,438,933,625.28 × 572,836,601.28 - Step 4: Simplify right side
1,042,704,842.16x = 824,273,847,372,904,192 - Step 5: Solve for x
x = 824,273,847,372,904,192/1,042,704,842.16 - Step 6: Final answer
x = 790,515,027.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.