Finding the Fourth Proportional to 7,402,812.21, 11,101,498.43 and 2,543,740.74
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Solution
The fourth proportional to 7,402,812.21, 11,101,498.43 and 2,543,740.74 is: 3,814,676.51
Step by Step Solution
- Step 1: Write the proportion equation
7,402,812.21 : 11,101,498.43 = 2,543,740.74 : x - Step 2: Convert to fraction form
7,402,812.21/11,101,498.43 = 2,543,740.74/x - Step 3: Cross multiply
7,402,812.21x = 11,101,498.43 × 2,543,740.74 - Step 4: Simplify right side
7,402,812.21x = 28,239,333,818,718.34 - Step 5: Solve for x
x = 28,239,333,818,718.34/7,402,812.21 - Step 6: Final answer
x = 3,814,676.51
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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.