Finding the Fourth Proportional to 422,860,154.88, 634,264,743.12 and 251,427,917.28
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Solution
The fourth proportional to 422,860,154.88, 634,264,743.12 and 251,427,917.28 is: 377,126,720.33
Step by Step Solution
- Step 1: Write the proportion equation
422,860,154.88 : 634,264,743.12 = 251,427,917.28 : x - Step 2: Convert to fraction form
422,860,154.88/634,264,743.12 = 251,427,917.28/x - Step 3: Cross multiply
422,860,154.88x = 634,264,743.12 × 251,427,917.28 - Step 4: Simplify right side
422,860,154.88x = 159,471,863,366,795,808 - Step 5: Solve for x
x = 159,471,863,366,795,808/422,860,154.88 - Step 6: Final answer
x = 377,126,720.33
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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.