Finding the Fourth Proportional to 403,704,726, 557,112,745.74 and 218,065,742.70
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Solution
The fourth proportional to 403,704,726, 557,112,745.74 and 218,065,742.70 is: 300,930,845.85
Step by Step Solution
- Step 1: Write the proportion equation
403,704,726 : 557,112,745.74 = 218,065,742.70 : x - Step 2: Convert to fraction form
403,704,726/557,112,745.74 = 218,065,742.70/x - Step 3: Cross multiply
403,704,726x = 557,112,745.74 × 218,065,742.70 - Step 4: Simplify right side
403,704,726x = 121,487,204,667,429,360 - Step 5: Solve for x
x = 121,487,204,667,429,360/403,704,726 - Step 6: Final answer
x = 300,930,845.85
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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.