Finding the Fourth Proportional to 399,132,236.90, 598,699,826.16 and 122,781,536.66
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Solution
The fourth proportional to 399,132,236.90, 598,699,826.16 and 122,781,536.66 is: 184,172,757.44
Step by Step Solution
- Step 1: Write the proportion equation
399,132,236.90 : 598,699,826.16 = 122,781,536.66 : x - Step 2: Convert to fraction form
399,132,236.90/598,699,826.16 = 122,781,536.66/x - Step 3: Cross multiply
399,132,236.90x = 598,699,826.16 × 122,781,536.66 - Step 4: Simplify right side
399,132,236.90x = 73,509,284,653,999,664 - Step 5: Solve for x
x = 73,509,284,653,999,664/399,132,236.90 - Step 6: Final answer
x = 184,172,757.44
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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.