Finding the Fourth Proportional to 1,512,004,752.80, 2,266,215,538.80 and 638,604,432.80
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Solution
The fourth proportional to 1,512,004,752.80, 2,266,215,538.80 and 638,604,432.80 is: 957,149,960.06
Step by Step Solution
- Step 1: Write the proportion equation
1,512,004,752.80 : 2,266,215,538.80 = 638,604,432.80 : x - Step 2: Convert to fraction form
1,512,004,752.80/2,266,215,538.80 = 638,604,432.80/x - Step 3: Cross multiply
1,512,004,752.80x = 2,266,215,538.80 × 638,604,432.80 - Step 4: Simplify right side
1,512,004,752.80x = 1,447,215,288,757,920,512 - Step 5: Solve for x
x = 1,447,215,288,757,920,512/1,512,004,752.80 - Step 6: Final answer
x = 957,149,960.06
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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.