Finding the Fourth Proportional to 20,578,048.32, 28,395,660.12 and 11,879,023.36
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Solution
The fourth proportional to 20,578,048.32, 28,395,660.12 and 11,879,023.36 is: 16,391,870.82
Step by Step Solution
- Step 1: Write the proportion equation
20,578,048.32 : 28,395,660.12 = 11,879,023.36 : x - Step 2: Convert to fraction form
20,578,048.32/28,395,660.12 = 11,879,023.36/x - Step 3: Cross multiply
20,578,048.32x = 28,395,660.12 × 11,879,023.36 - Step 4: Simplify right side
20,578,048.32x = 337,312,709,888,100.38 - Step 5: Solve for x
x = 337,312,709,888,100.38/20,578,048.32 - Step 6: Final answer
x = 16,391,870.82
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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.