Finding the Fourth Proportional to 13,248,822.60, 19,873,233.90 and 12,292,228.80
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Solution
The fourth proportional to 13,248,822.60, 19,873,233.90 and 12,292,228.80 is: 18,438,343.20
Step by Step Solution
- Step 1: Write the proportion equation
13,248,822.60 : 19,873,233.90 = 12,292,228.80 : x - Step 2: Convert to fraction form
13,248,822.60/19,873,233.90 = 12,292,228.80/x - Step 3: Cross multiply
13,248,822.60x = 19,873,233.90 × 12,292,228.80 - Step 4: Simplify right side
13,248,822.60x = 244,286,338,094,716.31 - Step 5: Solve for x
x = 244,286,338,094,716.31/13,248,822.60 - Step 6: Final answer
x = 18,438,343.20
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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.