Finding the Fourth Proportional to 76,831,438.68, 106,028,207.82 and 42,023,384.82
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Solution
The fourth proportional to 76,831,438.68, 106,028,207.82 and 42,023,384.82 is: 57,992,720.89
Step by Step Solution
- Step 1: Write the proportion equation
76,831,438.68 : 106,028,207.82 = 42,023,384.82 : x - Step 2: Convert to fraction form
76,831,438.68/106,028,207.82 = 42,023,384.82/x - Step 3: Cross multiply
76,831,438.68x = 106,028,207.82 × 42,023,384.82 - Step 4: Simplify right side
76,831,438.68x = 4,455,664,178,994,793 - Step 5: Solve for x
x = 4,455,664,178,994,793/76,831,438.68 - Step 6: Final answer
x = 57,992,720.89
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.