Finding the Fourth Proportional to 1,178,459,026.57, 1,767,825,302.99 and 391,582,902.83
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Solution
The fourth proportional to 1,178,459,026.57, 1,767,825,302.99 and 391,582,902.83 is: 587,419,798.42
Step by Step Solution
- Step 1: Write the proportion equation
1,178,459,026.57 : 1,767,825,302.99 = 391,582,902.83 : x - Step 2: Convert to fraction form
1,178,459,026.57/1,767,825,302.99 = 391,582,902.83/x - Step 3: Cross multiply
1,178,459,026.57x = 1,767,825,302.99 × 391,582,902.83 - Step 4: Simplify right side
1,178,459,026.57x = 692,250,163,832,583,424 - Step 5: Solve for x
x = 692,250,163,832,583,424/1,178,459,026.57 - Step 6: Final answer
x = 587,419,798.42
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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.