Finding the Fourth Proportional to 77,432,265.22, 106,879,090.94 and 50,613,491.65
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Solution
The fourth proportional to 77,432,265.22, 106,879,090.94 and 50,613,491.65 is: 69,861,368.02
Step by Step Solution
- Step 1: Write the proportion equation
77,432,265.22 : 106,879,090.94 = 50,613,491.65 : x - Step 2: Convert to fraction form
77,432,265.22/106,879,090.94 = 50,613,491.65/x - Step 3: Cross multiply
77,432,265.22x = 106,879,090.94 × 50,613,491.65 - Step 4: Simplify right side
77,432,265.22x = 5,409,523,976,851,280 - Step 5: Solve for x
x = 5,409,523,976,851,280/77,432,265.22 - Step 6: Final answer
x = 69,861,368.02
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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.