Finding the Fourth Proportional to 391,460,590.14, 540,297,812.61 and 248,313,764.58
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Solution
The fourth proportional to 391,460,590.14, 540,297,812.61 and 248,313,764.58 is: 342,725,135.61
Step by Step Solution
- Step 1: Write the proportion equation
391,460,590.14 : 540,297,812.61 = 248,313,764.58 : x - Step 2: Convert to fraction form
391,460,590.14/540,297,812.61 = 248,313,764.58/x - Step 3: Cross multiply
391,460,590.14x = 540,297,812.61 × 248,313,764.58 - Step 4: Simplify right side
391,460,590.14x = 134,163,383,843,528,512 - Step 5: Solve for x
x = 134,163,383,843,528,512/391,460,590.14 - Step 6: Final answer
x = 342,725,135.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.