Finding the Fourth Proportional to 1,276,467,623.12, 1,910,774,364.68 and 832,855,098.68
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Solution
The fourth proportional to 1,276,467,623.12, 1,910,774,364.68 and 832,855,098.68 is: 1,246,720,357.98
Step by Step Solution
- Step 1: Write the proportion equation
1,276,467,623.12 : 1,910,774,364.68 = 832,855,098.68 : x - Step 2: Convert to fraction form
1,276,467,623.12/1,910,774,364.68 = 832,855,098.68/x - Step 3: Cross multiply
1,276,467,623.12x = 1,910,774,364.68 × 832,855,098.68 - Step 4: Simplify right side
1,276,467,623.12x = 1,591,398,172,046,611,200 - Step 5: Solve for x
x = 1,591,398,172,046,611,200/1,276,467,623.12 - Step 6: Final answer
x = 1,246,720,357.98
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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.