Finding the Fourth Proportional to 811,963,528.48, 1,120,510,776.72 and 440,685,563.68
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Solution
The fourth proportional to 811,963,528.48, 1,120,510,776.72 and 440,685,563.68 is: 608,146,678.92
Step by Step Solution
- Step 1: Write the proportion equation
811,963,528.48 : 1,120,510,776.72 = 440,685,563.68 : x - Step 2: Convert to fraction form
811,963,528.48/1,120,510,776.72 = 440,685,563.68/x - Step 3: Cross multiply
811,963,528.48x = 1,120,510,776.72 × 440,685,563.68 - Step 4: Simplify right side
811,963,528.48x = 493,792,923,248,367,872 - Step 5: Solve for x
x = 493,792,923,248,367,872/811,963,528.48 - Step 6: Final answer
x = 608,146,678.92
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1.5x scale
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.