Finding the Fourth Proportional to 438,811,432.10, 605,559,630.57 and 240,568,670.55
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Solution
The fourth proportional to 438,811,432.10, 605,559,630.57 and 240,568,670.55 is: 331,984,685.47
Step by Step Solution
- Step 1: Write the proportion equation
438,811,432.10 : 605,559,630.57 = 240,568,670.55 : x - Step 2: Convert to fraction form
438,811,432.10/605,559,630.57 = 240,568,670.55/x - Step 3: Cross multiply
438,811,432.10x = 605,559,630.57 × 240,568,670.55 - Step 4: Simplify right side
438,811,432.10x = 145,678,675,264,974,048 - Step 5: Solve for x
x = 145,678,675,264,974,048/438,811,432.10 - Step 6: Final answer
x = 331,984,685.47
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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.