Finding the Fourth Proportional to 15,277,905.43, 21,083,908.41 and 8,402,567.92
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Solution
The fourth proportional to 15,277,905.43, 21,083,908.41 and 8,402,567.92 is: 11,595,763.12
Step by Step Solution
- Step 1: Write the proportion equation
15,277,905.43 : 21,083,908.41 = 8,402,567.92 : x - Step 2: Convert to fraction form
15,277,905.43/21,083,908.41 = 8,402,567.92/x - Step 3: Cross multiply
15,277,905.43x = 21,083,908.41 × 8,402,567.92 - Step 4: Simplify right side
15,277,905.43x = 177,158,972,381,374.44 - Step 5: Solve for x
x = 177,158,972,381,374.44/15,277,905.43 - Step 6: Final answer
x = 11,595,763.12
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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.