Finding the Fourth Proportional to 12,977,272.60, 19,444,913.70 and 8,176,370.20
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Solution
The fourth proportional to 12,977,272.60, 19,444,913.70 and 8,176,370.20 is: 12,251,327.21
Step by Step Solution
- Step 1: Write the proportion equation
12,977,272.60 : 19,444,913.70 = 8,176,370.20 : x - Step 2: Convert to fraction form
12,977,272.60/19,444,913.70 = 8,176,370.20/x - Step 3: Cross multiply
12,977,272.60x = 19,444,913.70 × 8,176,370.20 - Step 4: Simplify right side
12,977,272.60x = 158,988,812,918,251.75 - Step 5: Solve for x
x = 158,988,812,918,251.75/12,977,272.60 - Step 6: Final answer
x = 12,251,327.21
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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.