Finding the Fourth Proportional to 422,321,656.88, 633,517,028.57 and 212,124,260.77
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Solution
The fourth proportional to 422,321,656.88, 633,517,028.57 and 212,124,260.77 is: 318,203,741.58
Step by Step Solution
- Step 1: Write the proportion equation
422,321,656.88 : 633,517,028.57 = 212,124,260.77 : x - Step 2: Convert to fraction form
422,321,656.88/633,517,028.57 = 212,124,260.77/x - Step 3: Cross multiply
422,321,656.88x = 633,517,028.57 × 212,124,260.77 - Step 4: Simplify right side
422,321,656.88x = 134,384,331,369,564,752 - Step 5: Solve for x
x = 134,384,331,369,564,752/422,321,656.88 - Step 6: Final answer
x = 318,203,741.58
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.