Finding the Fourth Proportional to 64,675,501.78, 97,028,544.05 and 20,956,188.07
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Solution
The fourth proportional to 64,675,501.78, 97,028,544.05 and 20,956,188.07 is: 31,439,236.82
Step by Step Solution
- Step 1: Write the proportion equation
64,675,501.78 : 97,028,544.05 = 20,956,188.07 : x - Step 2: Convert to fraction form
64,675,501.78/97,028,544.05 = 20,956,188.07/x - Step 3: Cross multiply
64,675,501.78x = 97,028,544.05 × 20,956,188.07 - Step 4: Simplify right side
64,675,501.78x = 2,033,348,417,079,898.50 - Step 5: Solve for x
x = 2,033,348,417,079,898.50/64,675,501.78 - Step 6: Final answer
x = 31,439,236.82
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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.