Finding the Fourth Proportional to 22,353,220.80, 33,480,064.80 and 18,371,908.80
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Solution
The fourth proportional to 22,353,220.80, 33,480,064.80 and 18,371,908.80 is: 27,516,960.65
Step by Step Solution
- Step 1: Write the proportion equation
22,353,220.80 : 33,480,064.80 = 18,371,908.80 : x - Step 2: Convert to fraction form
22,353,220.80/33,480,064.80 = 18,371,908.80/x - Step 3: Cross multiply
22,353,220.80x = 33,480,064.80 × 18,371,908.80 - Step 4: Simplify right side
22,353,220.80x = 615,092,697,123,690.25 - Step 5: Solve for x
x = 615,092,697,123,690.25/22,353,220.80 - Step 6: Final answer
x = 27,516,960.65
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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.