Finding the Fourth Proportional to 98,580,417.60, 135,995,716.08 and 63,784,450.56
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Solution
The fourth proportional to 98,580,417.60, 135,995,716.08 and 63,784,450.56 is: 87,993,257.08
Step by Step Solution
- Step 1: Write the proportion equation
98,580,417.60 : 135,995,716.08 = 63,784,450.56 : x - Step 2: Convert to fraction form
98,580,417.60/135,995,716.08 = 63,784,450.56/x - Step 3: Cross multiply
98,580,417.60x = 135,995,716.08 × 63,784,450.56 - Step 4: Simplify right side
98,580,417.60x = 8,674,412,028,676,558 - Step 5: Solve for x
x = 8,674,412,028,676,558/98,580,417.60 - Step 6: Final answer
x = 87,993,257.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.