Finding the Fourth Proportional to 51,653,191.55, 71,286,439.20 and 38,577,750.05
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Solution
The fourth proportional to 51,653,191.55, 71,286,439.20 and 38,577,750.05 is: 53,241,055.41
Step by Step Solution
- Step 1: Write the proportion equation
51,653,191.55 : 71,286,439.20 = 38,577,750.05 : x - Step 2: Convert to fraction form
51,653,191.55/71,286,439.20 = 38,577,750.05/x - Step 3: Cross multiply
51,653,191.55x = 71,286,439.20 × 38,577,750.05 - Step 4: Simplify right side
51,653,191.55x = 2,750,070,433,055,690 - Step 5: Solve for x
x = 2,750,070,433,055,690/51,653,191.55 - Step 6: Final answer
x = 53,241,055.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.