Finding the Fourth Proportional to 99,708,589.69, 137,620,812.04 and 58,468,768.09
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Solution
The fourth proportional to 99,708,589.69, 137,620,812.04 and 58,468,768.09 is: 80,700,362.61
Step by Step Solution
- Step 1: Write the proportion equation
99,708,589.69 : 137,620,812.04 = 58,468,768.09 : x - Step 2: Convert to fraction form
99,708,589.69/137,620,812.04 = 58,468,768.09/x - Step 3: Cross multiply
99,708,589.69x = 137,620,812.04 × 58,468,768.09 - Step 4: Simplify right side
99,708,589.69x = 8,046,519,343,524,240 - Step 5: Solve for x
x = 8,046,519,343,524,240/99,708,589.69 - Step 6: Final answer
x = 80,700,362.61
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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.