Finding the Fourth Proportional to 7,724,076.80, 11,584,041.60 and 3,236,806.40
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Solution
The fourth proportional to 7,724,076.80, 11,584,041.60 and 3,236,806.40 is: 4,854,340.65
Step by Step Solution
- Step 1: Write the proportion equation
7,724,076.80 : 11,584,041.60 = 3,236,806.40 : x - Step 2: Convert to fraction form
7,724,076.80/11,584,041.60 = 3,236,806.40/x - Step 3: Cross multiply
7,724,076.80x = 11,584,041.60 × 3,236,806.40 - Step 4: Simplify right side
7,724,076.80x = 37,495,299,988,746.23 - Step 5: Solve for x
x = 37,495,299,988,746.23/7,724,076.80 - Step 6: Final answer
x = 4,854,340.65
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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.