Finding the Fourth Proportional to 949,119,505.64, 1,423,160,262.70 and 753,638,628.44
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Solution
The fourth proportional to 949,119,505.64, 1,423,160,262.70 and 753,638,628.44 is: 1,130,045,839.39
Step by Step Solution
- Step 1: Write the proportion equation
949,119,505.64 : 1,423,160,262.70 = 753,638,628.44 : x - Step 2: Convert to fraction form
949,119,505.64/1,423,160,262.70 = 753,638,628.44/x - Step 3: Cross multiply
949,119,505.64x = 1,423,160,262.70 × 753,638,628.44 - Step 4: Simplify right side
949,119,505.64x = 1,072,548,548,431,538,176 - Step 5: Solve for x
x = 1,072,548,548,431,538,176/949,119,505.64 - Step 6: Final answer
x = 1,130,045,839.39
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1.5x scale
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.