Finding the Fourth Proportional to 14,428,206.42, 19,910,931.84 and 7,902,246.30
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Solution
The fourth proportional to 14,428,206.42, 19,910,931.84 and 7,902,246.30 is: 10,905,103.72
Step by Step Solution
- Step 1: Write the proportion equation
14,428,206.42 : 19,910,931.84 = 7,902,246.30 : x - Step 2: Convert to fraction form
14,428,206.42/19,910,931.84 = 7,902,246.30/x - Step 3: Cross multiply
14,428,206.42x = 19,910,931.84 × 7,902,246.30 - Step 4: Simplify right side
14,428,206.42x = 157,341,087,462,192.19 - Step 5: Solve for x
x = 157,341,087,462,192.19/14,428,206.42 - Step 6: Final answer
x = 10,905,103.72
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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.