Finding the Fourth Proportional to 13,357,172.94, 18,432,904.65 and 7,555,831.44
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Solution
The fourth proportional to 13,357,172.94, 18,432,904.65 and 7,555,831.44 is: 10,427,050.78
Step by Step Solution
- Step 1: Write the proportion equation
13,357,172.94 : 18,432,904.65 = 7,555,831.44 : x - Step 2: Convert to fraction form
13,357,172.94/18,432,904.65 = 7,555,831.44/x - Step 3: Cross multiply
13,357,172.94x = 18,432,904.65 × 7,555,831.44 - Step 4: Simplify right side
13,357,172.94x = 139,275,920,484,992.19 - Step 5: Solve for x
x = 139,275,920,484,992.19/13,357,172.94 - Step 6: Final answer
x = 10,427,050.78
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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.