Finding the Fourth Proportional to 105,157,546.80, 145,117,864.88 and 57,473,764.36
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Solution
The fourth proportional to 105,157,546.80, 145,117,864.88 and 57,473,764.36 is: 79,314,040.92
Step by Step Solution
- Step 1: Write the proportion equation
105,157,546.80 : 145,117,864.88 = 57,473,764.36 : x - Step 2: Convert to fraction form
105,157,546.80/145,117,864.88 = 57,473,764.36/x - Step 3: Cross multiply
105,157,546.80x = 145,117,864.88 × 57,473,764.36 - Step 4: Simplify right side
105,157,546.80x = 8,340,469,969,667,779 - Step 5: Solve for x
x = 8,340,469,969,667,779/105,157,546.80 - Step 6: Final answer
x = 79,314,040.92
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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.