Finding the Fourth Proportional to 22,272,063.20, 33,408,094.80 and 18,912,831.20
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Solution
The fourth proportional to 22,272,063.20, 33,408,094.80 and 18,912,831.20 is: 28,369,246.80
Step by Step Solution
- Step 1: Write the proportion equation
22,272,063.20 : 33,408,094.80 = 18,912,831.20 : x - Step 2: Convert to fraction form
22,272,063.20/33,408,094.80 = 18,912,831.20/x - Step 3: Cross multiply
22,272,063.20x = 33,408,094.80 × 18,912,831.20 - Step 4: Simplify right side
22,272,063.20x = 631,841,657,665,997.75 - Step 5: Solve for x
x = 631,841,657,665,997.75/22,272,063.20 - Step 6: Final answer
x = 28,369,246.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.