Finding the Fourth Proportional to 879,309,198.12, 1,213,391,502.90 and 482,829,412.08
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Solution
The fourth proportional to 879,309,198.12, 1,213,391,502.90 and 482,829,412.08 is: 666,274,283.52
Step by Step Solution
- Step 1: Write the proportion equation
879,309,198.12 : 1,213,391,502.90 = 482,829,412.08 : x - Step 2: Convert to fraction form
879,309,198.12/1,213,391,502.90 = 482,829,412.08/x - Step 3: Cross multiply
879,309,198.12x = 1,213,391,502.90 × 482,829,412.08 - Step 4: Simplify right side
879,309,198.12x = 585,861,105,968,074,624 - Step 5: Solve for x
x = 585,861,105,968,074,624/879,309,198.12 - Step 6: Final answer
x = 666,274,283.52
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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.