Finding the Fourth Proportional to 15,484,135.15, 21,368,656.09 and 8,515,342.54
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Solution
The fourth proportional to 15,484,135.15, 21,368,656.09 and 8,515,342.54 is: 11,751,474.94
Step by Step Solution
- Step 1: Write the proportion equation
15,484,135.15 : 21,368,656.09 = 8,515,342.54 : x - Step 2: Convert to fraction form
15,484,135.15/21,368,656.09 = 8,515,342.54/x - Step 3: Cross multiply
15,484,135.15x = 21,368,656.09 × 8,515,342.54 - Step 4: Simplify right side
15,484,135.15x = 181,961,426,166,908.50 - Step 5: Solve for x
x = 181,961,426,166,908.50/15,484,135.15 - Step 6: Final answer
x = 11,751,474.94
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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.