Finding the Fourth Proportional to 9,917,586.45, 13,685,518.86 and 5,565,831.99
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Solution
The fourth proportional to 9,917,586.45, 13,685,518.86 and 5,565,831.99 is: 7,680,426.99
Step by Step Solution
- Step 1: Write the proportion equation
9,917,586.45 : 13,685,518.86 = 5,565,831.99 : x - Step 2: Convert to fraction form
9,917,586.45/13,685,518.86 = 5,565,831.99/x - Step 3: Cross multiply
9,917,586.45x = 13,685,518.86 × 5,565,831.99 - Step 4: Simplify right side
9,917,586.45x = 76,171,298,670,736.33 - Step 5: Solve for x
x = 76,171,298,670,736.33/9,917,586.45 - Step 6: Final answer
x = 7,680,426.99
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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.