Finding the Fourth Proportional to 13,526,425.53, 18,664,474.28 and 8,225,416.17
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Solution
The fourth proportional to 13,526,425.53, 18,664,474.28 and 8,225,416.17 is: 11,349,862.40
Step by Step Solution
- Step 1: Write the proportion equation
13,526,425.53 : 18,664,474.28 = 8,225,416.17 : x - Step 2: Convert to fraction form
13,526,425.53/18,664,474.28 = 8,225,416.17/x - Step 3: Cross multiply
13,526,425.53x = 18,664,474.28 × 8,225,416.17 - Step 4: Simplify right side
13,526,425.53x = 153,523,068,506,134 - Step 5: Solve for x
x = 153,523,068,506,134/13,526,425.53 - Step 6: Final answer
x = 11,349,862.40
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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.