Finding the Fourth Proportional to 76,922,972.96, 106,149,497.99 and 42,108,929.15
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Solution
The fourth proportional to 76,922,972.96, 106,149,497.99 and 42,108,929.15 is: 58,108,020.50
Step by Step Solution
- Step 1: Write the proportion equation
76,922,972.96 : 106,149,497.99 = 42,108,929.15 : x - Step 2: Convert to fraction form
76,922,972.96/106,149,497.99 = 42,108,929.15/x - Step 3: Cross multiply
76,922,972.96x = 106,149,497.99 × 42,108,929.15 - Step 4: Simplify right side
76,922,972.96x = 4,469,841,689,427,685.50 - Step 5: Solve for x
x = 4,469,841,689,427,685.50/76,922,972.96 - Step 6: Final answer
x = 58,108,020.50
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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.