Finding the Fourth Proportional to 154,248,719.28, 212,863,234.98 and 88,170,649.04
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Solution
The fourth proportional to 154,248,719.28, 212,863,234.98 and 88,170,649.04 is: 121,675,497.03
Step by Step Solution
- Step 1: Write the proportion equation
154,248,719.28 : 212,863,234.98 = 88,170,649.04 : x - Step 2: Convert to fraction form
154,248,719.28/212,863,234.98 = 88,170,649.04/x - Step 3: Cross multiply
154,248,719.28x = 212,863,234.98 × 88,170,649.04 - Step 4: Simplify right side
154,248,719.28x = 18,768,289,584,674,548 - Step 5: Solve for x
x = 18,768,289,584,674,548/154,248,719.28 - Step 6: Final answer
x = 121,675,497.03
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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.