Finding the Fourth Proportional to 77,432,276.48, 106,879,106.46 and 50,613,502.90
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Solution
The fourth proportional to 77,432,276.48, 106,879,106.46 and 50,613,502.90 is: 69,861,383.53
Step by Step Solution
- Step 1: Write the proportion equation
77,432,276.48 : 106,879,106.46 = 50,613,502.90 : x - Step 2: Convert to fraction form
77,432,276.48/106,879,106.46 = 50,613,502.90/x - Step 3: Cross multiply
77,432,276.48x = 106,879,106.46 × 50,613,502.90 - Step 4: Simplify right side
77,432,276.48x = 5,409,525,964,762,618 - Step 5: Solve for x
x = 5,409,525,964,762,618/77,432,276.48 - Step 6: Final answer
x = 69,861,383.53
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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.