Finding the Fourth Proportional to 7,909,928.16, 11,864,892.12 and 3,648,835.68
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Solution
The fourth proportional to 7,909,928.16, 11,864,892.12 and 3,648,835.68 is: 5,473,253.46
Step by Step Solution
- Step 1: Write the proportion equation
7,909,928.16 : 11,864,892.12 = 3,648,835.68 : x - Step 2: Convert to fraction form
7,909,928.16/11,864,892.12 = 3,648,835.68/x - Step 3: Cross multiply
7,909,928.16x = 11,864,892.12 × 3,648,835.68 - Step 4: Simplify right side
7,909,928.16x = 43,293,041,706,806.84 - Step 5: Solve for x
x = 43,293,041,706,806.84/7,909,928.16 - Step 6: Final answer
x = 5,473,253.46
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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.