Finding the Fourth Proportional to 66,435,447.80, 99,653,171.70 and 30,603,639.80
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Solution
The fourth proportional to 66,435,447.80, 99,653,171.70 and 30,603,639.80 is: 45,905,459.70
Step by Step Solution
- Step 1: Write the proportion equation
66,435,447.80 : 99,653,171.70 = 30,603,639.80 : x - Step 2: Convert to fraction form
66,435,447.80/99,653,171.70 = 30,603,639.80/x - Step 3: Cross multiply
66,435,447.80x = 99,653,171.70 × 30,603,639.80 - Step 4: Simplify right side
66,435,447.80x = 3,049,749,771,634,354 - Step 5: Solve for x
x = 3,049,749,771,634,354/66,435,447.80 - Step 6: Final answer
x = 45,905,459.70
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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.