Finding the Fourth Proportional to 518,996,482.62, 716,217,043.35 and 280,841,668.26
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Solution
The fourth proportional to 518,996,482.62, 716,217,043.35 and 280,841,668.26 is: 387,562,528.89
Step by Step Solution
- Step 1: Write the proportion equation
518,996,482.62 : 716,217,043.35 = 280,841,668.26 : x - Step 2: Convert to fraction form
518,996,482.62/716,217,043.35 = 280,841,668.26/x - Step 3: Cross multiply
518,996,482.62x = 716,217,043.35 × 280,841,668.26 - Step 4: Simplify right side
518,996,482.62x = 201,143,589,290,658,752 - Step 5: Solve for x
x = 201,143,589,290,658,752/518,996,482.62 - Step 6: Final answer
x = 387,562,528.89
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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.