Finding the Fourth Proportional to 19,246,305.40, 28,869,495.36 and 4,673,163.76
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Solution
The fourth proportional to 19,246,305.40, 28,869,495.36 and 4,673,163.76 is: 7,009,754.69
Step by Step Solution
- Step 1: Write the proportion equation
19,246,305.40 : 28,869,495.36 = 4,673,163.76 : x - Step 2: Convert to fraction form
19,246,305.40/28,869,495.36 = 4,673,163.76/x - Step 3: Cross multiply
19,246,305.40x = 28,869,495.36 × 4,673,163.76 - Step 4: Simplify right side
19,246,305.40x = 134,911,879,485,840.14 - Step 5: Solve for x
x = 134,911,879,485,840.14/19,246,305.40 - Step 6: Final answer
x = 7,009,754.69
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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.