Finding the Fourth Proportional to 103,457,811.29, 142,718,349.57 and 64,284,704.69
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Solution
The fourth proportional to 103,457,811.29, 142,718,349.57 and 64,284,704.69 is: 88,679,693.12
Step by Step Solution
- Step 1: Write the proportion equation
103,457,811.29 : 142,718,349.57 = 64,284,704.69 : x - Step 2: Convert to fraction form
103,457,811.29/142,718,349.57 = 64,284,704.69/x - Step 3: Cross multiply
103,457,811.29x = 142,718,349.57 × 64,284,704.69 - Step 4: Simplify right side
103,457,811.29x = 9,174,606,955,951,638 - Step 5: Solve for x
x = 9,174,606,955,951,638/103,457,811.29 - Step 6: Final answer
x = 88,679,693.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.