Finding the Fourth Proportional to 18,467,980.48, 27,704,947.44 and 5,688,479.24
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Solution
The fourth proportional to 18,467,980.48, 27,704,947.44 and 5,688,479.24 is: 8,533,635.74
Step by Step Solution
- Step 1: Write the proportion equation
18,467,980.48 : 27,704,947.44 = 5,688,479.24 : x - Step 2: Convert to fraction form
18,467,980.48/27,704,947.44 = 5,688,479.24/x - Step 3: Cross multiply
18,467,980.48x = 27,704,947.44 × 5,688,479.24 - Step 4: Simplify right side
18,467,980.48x = 157,599,018,357,731.16 - Step 5: Solve for x
x = 157,599,018,357,731.16/18,467,980.48 - Step 6: Final answer
x = 8,533,635.74
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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.