Finding the Fourth Proportional to 12,953,877.20, 19,430,815.80 and 3,977,262.80
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Solution
The fourth proportional to 12,953,877.20, 19,430,815.80 and 3,977,262.80 is: 5,965,894.20
Step by Step Solution
- Step 1: Write the proportion equation
12,953,877.20 : 19,430,815.80 = 3,977,262.80 : x - Step 2: Convert to fraction form
12,953,877.20/19,430,815.80 = 3,977,262.80/x - Step 3: Cross multiply
12,953,877.20x = 19,430,815.80 × 3,977,262.80 - Step 4: Simplify right side
12,953,877.20x = 77,281,460,854,992.23 - Step 5: Solve for x
x = 77,281,460,854,992.23/12,953,877.20 - Step 6: Final answer
x = 5,965,894.20
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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.