Finding the Fourth Proportional to 5,432,824.90, 8,149,237.35 and 1,645,815.70
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Solution
The fourth proportional to 5,432,824.90, 8,149,237.35 and 1,645,815.70 is: 2,468,723.55
Step by Step Solution
- Step 1: Write the proportion equation
5,432,824.90 : 8,149,237.35 = 1,645,815.70 : x - Step 2: Convert to fraction form
5,432,824.90/8,149,237.35 = 1,645,815.70/x - Step 3: Cross multiply
5,432,824.90x = 8,149,237.35 × 1,645,815.70 - Step 4: Simplify right side
5,432,824.90x = 13,412,142,773,656.39 - Step 5: Solve for x
x = 13,412,142,773,656.39/5,432,824.90 - Step 6: Final answer
x = 2,468,723.55
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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.