Finding the Fourth Proportional to 13,909,813.77, 19,173,371.16 and 10,964,831.47
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Solution
The fourth proportional to 13,909,813.77, 19,173,371.16 and 10,964,831.47 is: 15,113,989.80
Step by Step Solution
- Step 1: Write the proportion equation
13,909,813.77 : 19,173,371.16 = 10,964,831.47 : x - Step 2: Convert to fraction form
13,909,813.77/19,173,371.16 = 10,964,831.47/x - Step 3: Cross multiply
13,909,813.77x = 19,173,371.16 × 10,964,831.47 - Step 4: Simplify right side
13,909,813.77x = 210,232,783,481,158.41 - Step 5: Solve for x
x = 210,232,783,481,158.41/13,909,813.77 - Step 6: Final answer
x = 15,113,989.80
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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.