Finding the Fourth Proportional to 22,178,772.70, 33,232,389.45 and 12,565,563.10
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Solution
The fourth proportional to 22,178,772.70, 33,232,389.45 and 12,565,563.10 is: 18,828,079.09
Step by Step Solution
- Step 1: Write the proportion equation
22,178,772.70 : 33,232,389.45 = 12,565,563.10 : x - Step 2: Convert to fraction form
22,178,772.70/33,232,389.45 = 12,565,563.10/x - Step 3: Cross multiply
22,178,772.70x = 33,232,389.45 × 12,565,563.10 - Step 4: Simplify right side
22,178,772.70x = 417,583,686,597,749.25 - Step 5: Solve for x
x = 417,583,686,597,749.25/22,178,772.70 - Step 6: Final answer
x = 18,828,079.09
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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.