Finding the Fourth Proportional to 782,967,674.79, 1,080,523,126.62 and 430,570,475.55
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Solution
The fourth proportional to 782,967,674.79, 1,080,523,126.62 and 430,570,475.55 is: 594,202,508.55
Step by Step Solution
- Step 1: Write the proportion equation
782,967,674.79 : 1,080,523,126.62 = 430,570,475.55 : x - Step 2: Convert to fraction form
782,967,674.79/1,080,523,126.62 = 430,570,475.55/x - Step 3: Cross multiply
782,967,674.79x = 1,080,523,126.62 × 430,570,475.55 - Step 4: Simplify right side
782,967,674.79x = 465,241,356,471,546,240 - Step 5: Solve for x
x = 465,241,356,471,546,240/782,967,674.79 - Step 6: Final answer
x = 594,202,508.55
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1.5x scale
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.