Finding the Fourth Proportional to 130,371,338.40, 195,486,148.80 and 53,702,116.80
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Solution
The fourth proportional to 130,371,338.40, 195,486,148.80 and 53,702,116.80 is: 80,523,987.28
Step by Step Solution
- Step 1: Write the proportion equation
130,371,338.40 : 195,486,148.80 = 53,702,116.80 : x - Step 2: Convert to fraction form
130,371,338.40/195,486,148.80 = 53,702,116.80/x - Step 3: Cross multiply
130,371,338.40x = 195,486,148.80 × 53,702,116.80 - Step 4: Simplify right side
130,371,338.40x = 10,498,019,995,639,780 - Step 5: Solve for x
x = 10,498,019,995,639,780/130,371,338.40 - Step 6: Final answer
x = 80,523,987.28
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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.