Finding the Fourth Proportional to 13,286,117.60, 19,929,176.40 and 4,767,315.20
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Solution
The fourth proportional to 13,286,117.60, 19,929,176.40 and 4,767,315.20 is: 7,150,972.80
Step by Step Solution
- Step 1: Write the proportion equation
13,286,117.60 : 19,929,176.40 = 4,767,315.20 : x - Step 2: Convert to fraction form
13,286,117.60/19,929,176.40 = 4,767,315.20/x - Step 3: Cross multiply
13,286,117.60x = 19,929,176.40 × 4,767,315.20 - Step 4: Simplify right side
13,286,117.60x = 95,008,665,575,201.28 - Step 5: Solve for x
x = 95,008,665,575,201.28/13,286,117.60 - Step 6: Final answer
x = 7,150,972.80
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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.