Finding the Fourth Proportional to 15,138,130.38, 22,717,224.48 and 8,319,465.32
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Solution
The fourth proportional to 15,138,130.38, 22,717,224.48 and 8,319,465.32 is: 12,484,709.57
Step by Step Solution
- Step 1: Write the proportion equation
15,138,130.38 : 22,717,224.48 = 8,319,465.32 : x - Step 2: Convert to fraction form
15,138,130.38/22,717,224.48 = 8,319,465.32/x - Step 3: Cross multiply
15,138,130.38x = 22,717,224.48 × 8,319,465.32 - Step 4: Simplify right side
15,138,130.38x = 188,995,161,228,015.03 - Step 5: Solve for x
x = 188,995,161,228,015.03/15,138,130.38 - Step 6: Final answer
x = 12,484,709.57
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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.