Finding the Fourth Proportional to 245,725,505.62, 368,589,636.34 and 81,962,812.62
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Solution
The fourth proportional to 245,725,505.62, 368,589,636.34 and 81,962,812.62 is: 122,944,678.54
Step by Step Solution
- Step 1: Write the proportion equation
245,725,505.62 : 368,589,636.34 = 81,962,812.62 : x - Step 2: Convert to fraction form
245,725,505.62/368,589,636.34 = 81,962,812.62/x - Step 3: Cross multiply
245,725,505.62x = 368,589,636.34 × 81,962,812.62 - Step 4: Simplify right side
245,725,505.62x = 30,210,643,297,009,364 - Step 5: Solve for x
x = 30,210,643,297,009,364/245,725,505.62 - Step 6: Final answer
x = 122,944,678.54
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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.