Finding the Fourth Proportional to 153,824,990.58, 212,278,497.42 and 84,210,371.46
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Solution
The fourth proportional to 153,824,990.58, 212,278,497.42 and 84,210,371.46 is: 116,210,318.32
Step by Step Solution
- Step 1: Write the proportion equation
153,824,990.58 : 212,278,497.42 = 84,210,371.46 : x - Step 2: Convert to fraction form
153,824,990.58/212,278,497.42 = 84,210,371.46/x - Step 3: Cross multiply
153,824,990.58x = 212,278,497.42 × 84,210,371.46 - Step 4: Simplify right side
153,824,990.58x = 17,876,051,120,708,850 - Step 5: Solve for x
x = 17,876,051,120,708,850/153,824,990.58 - Step 6: Final answer
x = 116,210,318.32
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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.