Finding the Fourth Proportional to 1,889,572,601.70, 2,834,358,902.55 and 854,467,251.30
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Solution
The fourth proportional to 1,889,572,601.70, 2,834,358,902.55 and 854,467,251.30 is: 1,281,700,876.95
Step by Step Solution
- Step 1: Write the proportion equation
1,889,572,601.70 : 2,834,358,902.55 = 854,467,251.30 : x - Step 2: Convert to fraction form
1,889,572,601.70/2,834,358,902.55 = 854,467,251.30/x - Step 3: Cross multiply
1,889,572,601.70x = 2,834,358,902.55 × 854,467,251.30 - Step 4: Simplify right side
1,889,572,601.70x = 2,421,866,860,659,582,976 - Step 5: Solve for x
x = 2,421,866,860,659,582,976/1,889,572,601.70 - Step 6: Final answer
x = 1,281,700,876.95
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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.