Finding the Fourth Proportional to 19,516,852.21, 26,933,416.53 and 10,815,170.14
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Solution
The fourth proportional to 19,516,852.21, 26,933,416.53 and 10,815,170.14 is: 14,925,023.72
Step by Step Solution
- Step 1: Write the proportion equation
19,516,852.21 : 26,933,416.53 = 10,815,170.14 : x - Step 2: Convert to fraction form
19,516,852.21/26,933,416.53 = 10,815,170.14/x - Step 3: Cross multiply
19,516,852.21x = 26,933,416.53 × 10,815,170.14 - Step 4: Simplify right side
19,516,852.21x = 291,289,482,223,438.44 - Step 5: Solve for x
x = 291,289,482,223,438.44/19,516,852.21 - Step 6: Final answer
x = 14,925,023.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.