Finding the Fourth Proportional to 13,785,708.38, 18,989,242.29 and 10,516,848.01
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Solution
The fourth proportional to 13,785,708.38, 18,989,242.29 and 10,516,848.01 is: 14,486,522.52
Step by Step Solution
- Step 1: Write the proportion equation
13,785,708.38 : 18,989,242.29 = 10,516,848.01 : x - Step 2: Convert to fraction form
13,785,708.38/18,989,242.29 = 10,516,848.01/x - Step 3: Cross multiply
13,785,708.38x = 18,989,242.29 × 10,516,848.01 - Step 4: Simplify right side
13,785,708.38x = 199,706,974,841,463.91 - Step 5: Solve for x
x = 199,706,974,841,463.91/13,785,708.38 - Step 6: Final answer
x = 14,486,522.52
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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.