Finding the Fourth Proportional to 72,430,530.28, 108,644,217.18 and 34,070,782.12
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Solution
The fourth proportional to 72,430,530.28, 108,644,217.18 and 34,070,782.12 is: 51,105,430.79
Step by Step Solution
- Step 1: Write the proportion equation
72,430,530.28 : 108,644,217.18 = 34,070,782.12 : x - Step 2: Convert to fraction form
72,430,530.28/108,644,217.18 = 34,070,782.12/x - Step 3: Cross multiply
72,430,530.28x = 108,644,217.18 × 34,070,782.12 - Step 4: Simplify right side
72,430,530.28x = 3,701,593,452,137,741 - Step 5: Solve for x
x = 3,701,593,452,137,741/72,430,530.28 - Step 6: Final answer
x = 51,105,430.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.