Finding the Fourth Proportional to 13,593,356.84, 18,758,831.39 and 7,398,447.95
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Solution
The fourth proportional to 13,593,356.84, 18,758,831.39 and 7,398,447.95 is: 10,209,857.60
Step by Step Solution
- Step 1: Write the proportion equation
13,593,356.84 : 18,758,831.39 = 7,398,447.95 : x - Step 2: Convert to fraction form
13,593,356.84/18,758,831.39 = 7,398,447.95/x - Step 3: Cross multiply
13,593,356.84x = 18,758,831.39 × 7,398,447.95 - Step 4: Simplify right side
13,593,356.84x = 138,786,237,604,748.92 - Step 5: Solve for x
x = 138,786,237,604,748.92/13,593,356.84 - Step 6: Final answer
x = 10,209,857.60
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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.