Finding the Fourth Proportional to 129,395,567.61, 194,028,447.74 and 43,103,636.73
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Solution
The fourth proportional to 129,395,567.61, 194,028,447.74 and 43,103,636.73 is: 64,633,834.69
Step by Step Solution
- Step 1: Write the proportion equation
129,395,567.61 : 194,028,447.74 = 43,103,636.73 : x - Step 2: Convert to fraction form
129,395,567.61/194,028,447.74 = 43,103,636.73/x - Step 3: Cross multiply
129,395,567.61x = 194,028,447.74 × 43,103,636.73 - Step 4: Simplify right side
129,395,567.61x = 8,363,331,726,455,231 - Step 5: Solve for x
x = 8,363,331,726,455,231/129,395,567.61 - Step 6: Final answer
x = 64,633,834.69
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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.