Finding the Fourth Proportional to 440,129,113.80, 660,193,670.70 and 310,988,950.80
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Solution
The fourth proportional to 440,129,113.80, 660,193,670.70 and 310,988,950.80 is: 466,483,426.20
Step by Step Solution
- Step 1: Write the proportion equation
440,129,113.80 : 660,193,670.70 = 310,988,950.80 : x - Step 2: Convert to fraction form
440,129,113.80/660,193,670.70 = 310,988,950.80/x - Step 3: Cross multiply
440,129,113.80x = 660,193,670.70 × 310,988,950.80 - Step 4: Simplify right side
440,129,113.80x = 205,312,936,975,793,728 - Step 5: Solve for x
x = 205,312,936,975,793,728/440,129,113.80 - Step 6: Final answer
x = 466,483,426.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.