Finding the Fourth Proportional to 7,124,202.76, 9,832,663.02 and 5,402,421.40
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Solution
The fourth proportional to 7,124,202.76, 9,832,663.02 and 5,402,421.40 is: 7,456,299.45
Step by Step Solution
- Step 1: Write the proportion equation
7,124,202.76 : 9,832,663.02 = 5,402,421.40 : x - Step 2: Convert to fraction form
7,124,202.76/9,832,663.02 = 5,402,421.40/x - Step 3: Cross multiply
7,124,202.76x = 9,832,663.02 × 5,402,421.40 - Step 4: Simplify right side
7,124,202.76x = 53,120,189,118,236.63 - Step 5: Solve for x
x = 53,120,189,118,236.63/7,124,202.76 - Step 6: Final answer
x = 7,456,299.45
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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.