Finding the Fourth Proportional to 19,388,397.96, 26,754,415.92 and 11,240,160.84
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Solution
The fourth proportional to 19,388,397.96, 26,754,415.92 and 11,240,160.84 is: 15,510,509.88
Step by Step Solution
- Step 1: Write the proportion equation
19,388,397.96 : 26,754,415.92 = 11,240,160.84 : x - Step 2: Convert to fraction form
19,388,397.96/26,754,415.92 = 11,240,160.84/x - Step 3: Cross multiply
19,388,397.96x = 26,754,415.92 × 11,240,160.84 - Step 4: Simplify right side
19,388,397.96x = 300,723,938,121,056.56 - Step 5: Solve for x
x = 300,723,938,121,056.56/19,388,397.96 - Step 6: Final answer
x = 15,510,509.88
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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.