Finding the Fourth Proportional to 5,064,638.64, 6,989,221.80 and 2,773,012.56
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Solution
The fourth proportional to 5,064,638.64, 6,989,221.80 and 2,773,012.56 is: 3,826,768.54
Step by Step Solution
- Step 1: Write the proportion equation
5,064,638.64 : 6,989,221.80 = 2,773,012.56 : x - Step 2: Convert to fraction form
5,064,638.64/6,989,221.80 = 2,773,012.56/x - Step 3: Cross multiply
5,064,638.64x = 6,989,221.80 × 2,773,012.56 - Step 4: Simplify right side
5,064,638.64x = 19,381,199,836,025.81 - Step 5: Solve for x
x = 19,381,199,836,025.81/5,064,638.64 - Step 6: Final answer
x = 3,826,768.54
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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.