Finding the Fourth Proportional to 532,439,840.70, 798,659,761.05 and 442,860,320.70
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Solution
The fourth proportional to 532,439,840.70, 798,659,761.05 and 442,860,320.70 is: 664,290,481.05
Step by Step Solution
- Step 1: Write the proportion equation
532,439,840.70 : 798,659,761.05 = 442,860,320.70 : x - Step 2: Convert to fraction form
532,439,840.70/798,659,761.05 = 442,860,320.70/x - Step 3: Cross multiply
532,439,840.70x = 798,659,761.05 × 442,860,320.70 - Step 4: Simplify right side
532,439,840.70x = 353,694,717,908,788,352 - Step 5: Solve for x
x = 353,694,717,908,788,352/532,439,840.70 - Step 6: Final answer
x = 664,290,481.05
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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.