Finding the Fourth Proportional to 15,249,245.36, 21,043,368.35 and 8,279,763.39
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Solution
The fourth proportional to 15,249,245.36, 21,043,368.35 and 8,279,763.39 is: 11,425,753.00
Step by Step Solution
- Step 1: Write the proportion equation
15,249,245.36 : 21,043,368.35 = 8,279,763.39 : x - Step 2: Convert to fraction form
15,249,245.36/21,043,368.35 = 8,279,763.39/x - Step 3: Cross multiply
15,249,245.36x = 21,043,368.35 × 8,279,763.39 - Step 4: Simplify right side
15,249,245.36x = 174,234,110,856,265 - Step 5: Solve for x
x = 174,234,110,856,265/15,249,245.36 - Step 6: Final answer
x = 11,425,753.00
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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.