Finding the Fourth Proportional to 860,051,865.28, 1,186,972,335.32 and 488,829,697.96
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Solution
The fourth proportional to 860,051,865.28, 1,186,972,335.32 and 488,829,697.96 is: 674,642,253.08
Step by Step Solution
- Step 1: Write the proportion equation
860,051,865.28 : 1,186,972,335.32 = 488,829,697.96 : x - Step 2: Convert to fraction form
860,051,865.28/1,186,972,335.32 = 488,829,697.96/x - Step 3: Cross multiply
860,051,865.28x = 1,186,972,335.32 × 488,829,697.96 - Step 4: Simplify right side
860,051,865.28x = 580,227,328,161,351,424 - Step 5: Solve for x
x = 580,227,328,161,351,424/860,051,865.28 - Step 6: Final answer
x = 674,642,253.08
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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.