Finding the Fourth Proportional to 26,129,896.81, 39,192,312.56 and 7,934,251.93
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Solution
The fourth proportional to 26,129,896.81, 39,192,312.56 and 7,934,251.93 is: 11,900,608.86
Step by Step Solution
- Step 1: Write the proportion equation
26,129,896.81 : 39,192,312.56 = 7,934,251.93 : x - Step 2: Convert to fraction form
26,129,896.81/39,192,312.56 = 7,934,251.93/x - Step 3: Cross multiply
26,129,896.81x = 39,192,312.56 × 7,934,251.93 - Step 4: Simplify right side
26,129,896.81x = 310,961,681,570,343.25 - Step 5: Solve for x
x = 310,961,681,570,343.25/26,129,896.81 - Step 6: Final answer
x = 11,900,608.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.