Finding the Fourth Proportional to 76,495,609.11, 105,580,978.88 and 48,612,882.49
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Solution
The fourth proportional to 76,495,609.11, 105,580,978.88 and 48,612,882.49 is: 67,096,605.66
Step by Step Solution
- Step 1: Write the proportion equation
76,495,609.11 : 105,580,978.88 = 48,612,882.49 : x - Step 2: Convert to fraction form
76,495,609.11/105,580,978.88 = 48,612,882.49/x - Step 3: Cross multiply
76,495,609.11x = 105,580,978.88 × 48,612,882.49 - Step 4: Simplify right side
76,495,609.11x = 5,132,595,719,559,488 - Step 5: Solve for x
x = 5,132,595,719,559,488/76,495,609.11 - Step 6: Final answer
x = 67,096,605.66
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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.