Finding the Fourth Proportional to 45,170,128.40, 67,717,102.34 and 19,591,873.06
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Solution
The fourth proportional to 45,170,128.40, 67,717,102.34 and 19,591,873.06 is: 29,371,288.50
Step by Step Solution
- Step 1: Write the proportion equation
45,170,128.40 : 67,717,102.34 = 19,591,873.06 : x - Step 2: Convert to fraction form
45,170,128.40/67,717,102.34 = 19,591,873.06/x - Step 3: Cross multiply
45,170,128.40x = 67,717,102.34 × 19,591,873.06 - Step 4: Simplify right side
45,170,128.40x = 1,326,704,873,036,309 - Step 5: Solve for x
x = 1,326,704,873,036,309/45,170,128.40 - Step 6: Final answer
x = 29,371,288.50
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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.