Finding the Fourth Proportional to 397,467,846.16, 596,257,756.60 and 138,645,319.12
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Solution
The fourth proportional to 397,467,846.16, 596,257,756.60 and 138,645,319.12 is: 207,987,508.27
Step by Step Solution
- Step 1: Write the proportion equation
397,467,846.16 : 596,257,756.60 = 138,645,319.12 : x - Step 2: Convert to fraction form
397,467,846.16/596,257,756.60 = 138,645,319.12/x - Step 3: Cross multiply
397,467,846.16x = 596,257,756.60 × 138,645,319.12 - Step 4: Simplify right side
397,467,846.16x = 82,668,346,941,582,288 - Step 5: Solve for x
x = 82,668,346,941,582,288/397,467,846.16 - Step 6: Final answer
x = 207,987,508.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.