Finding the Fourth Proportional to 13,459,226.98, 18,573,638.74 and 7,347,655.48
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Solution
The fourth proportional to 13,459,226.98, 18,573,638.74 and 7,347,655.48 is: 10,139,712.98
Step by Step Solution
- Step 1: Write the proportion equation
13,459,226.98 : 18,573,638.74 = 7,347,655.48 : x - Step 2: Convert to fraction form
13,459,226.98/18,573,638.74 = 7,347,655.48/x - Step 3: Cross multiply
13,459,226.98x = 18,573,638.74 × 7,347,655.48 - Step 4: Simplify right side
13,459,226.98x = 136,472,698,471,501.30 - Step 5: Solve for x
x = 136,472,698,471,501.30/13,459,226.98 - Step 6: Final answer
x = 10,139,712.98
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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.