Finding the Fourth Proportional to 383,310,364.64, 528,968,303.20 and 218,313,286.88
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Solution
The fourth proportional to 383,310,364.64, 528,968,303.20 and 218,313,286.88 is: 301,272,335.89
Step by Step Solution
- Step 1: Write the proportion equation
383,310,364.64 : 528,968,303.20 = 218,313,286.88 : x - Step 2: Convert to fraction form
383,310,364.64/528,968,303.20 = 218,313,286.88/x - Step 3: Cross multiply
383,310,364.64x = 528,968,303.20 × 218,313,286.88 - Step 4: Simplify right side
383,310,364.64x = 115,480,808,926,928,416 - Step 5: Solve for x
x = 115,480,808,926,928,416/383,310,364.64 - Step 6: Final answer
x = 301,272,335.89
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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.