Finding the Fourth Proportional to 117,895,724.80, 162,697,879.58 and 67,668,251.74
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Solution
The fourth proportional to 117,895,724.80, 162,697,879.58 and 67,668,251.74 is: 93,383,208.69
Step by Step Solution
- Step 1: Write the proportion equation
117,895,724.80 : 162,697,879.58 = 67,668,251.74 : x - Step 2: Convert to fraction form
117,895,724.80/162,697,879.58 = 67,668,251.74/x - Step 3: Cross multiply
117,895,724.80x = 162,697,879.58 × 67,668,251.74 - Step 4: Simplify right side
117,895,724.80x = 11,009,481,072,238,558 - Step 5: Solve for x
x = 11,009,481,072,238,558/117,895,724.80 - Step 6: Final answer
x = 93,383,208.69
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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.