Finding the Fourth Proportional to 84,134,881.20, 126,202,321.80 and 26,631,652.80
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Solution
The fourth proportional to 84,134,881.20, 126,202,321.80 and 26,631,652.80 is: 39,947,479.20
Step by Step Solution
- Step 1: Write the proportion equation
84,134,881.20 : 126,202,321.80 = 26,631,652.80 : x - Step 2: Convert to fraction form
84,134,881.20/126,202,321.80 = 26,631,652.80/x - Step 3: Cross multiply
84,134,881.20x = 126,202,321.80 × 26,631,652.80 - Step 4: Simplify right side
84,134,881.20x = 3,360,976,416,731,471 - Step 5: Solve for x
x = 3,360,976,416,731,471/84,134,881.20 - Step 6: Final answer
x = 39,947,479.20
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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.