Finding the Fourth Proportional to 13,128,491.52, 18,118,229.04 and 7,328,403.36
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Solution
The fourth proportional to 13,128,491.52, 18,118,229.04 and 7,328,403.36 is: 10,113,705.02
Step by Step Solution
- Step 1: Write the proportion equation
13,128,491.52 : 18,118,229.04 = 7,328,403.36 : x - Step 2: Convert to fraction form
13,128,491.52/18,118,229.04 = 7,328,403.36/x - Step 3: Cross multiply
13,128,491.52x = 18,118,229.04 × 7,328,403.36 - Step 4: Simplify right side
13,128,491.52x = 132,777,690,573,985.58 - Step 5: Solve for x
x = 132,777,690,573,985.58/13,128,491.52 - Step 6: Final answer
x = 10,113,705.02
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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.