Finding the Fourth Proportional to 80,496,554.20, 120,744,831.30 and 73,316,195.80
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Solution
The fourth proportional to 80,496,554.20, 120,744,831.30 and 73,316,195.80 is: 109,974,293.70
Step by Step Solution
- Step 1: Write the proportion equation
80,496,554.20 : 120,744,831.30 = 73,316,195.80 : x - Step 2: Convert to fraction form
80,496,554.20/120,744,831.30 = 73,316,195.80/x - Step 3: Cross multiply
80,496,554.20x = 120,744,831.30 × 73,316,195.80 - Step 4: Simplify right side
80,496,554.20x = 8,852,551,693,428,768 - Step 5: Solve for x
x = 8,852,551,693,428,768/80,496,554.20 - Step 6: Final answer
x = 109,974,293.70
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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.