Finding the Fourth Proportional to 4,930,013.12, 7,390,120.80 and 3,430,955.84
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Solution
The fourth proportional to 4,930,013.12, 7,390,120.80 and 3,430,955.84 is: 5,143,024.47
Step by Step Solution
- Step 1: Write the proportion equation
4,930,013.12 : 7,390,120.80 = 3,430,955.84 : x - Step 2: Convert to fraction form
4,930,013.12/7,390,120.80 = 3,430,955.84/x - Step 3: Cross multiply
4,930,013.12x = 7,390,120.80 × 3,430,955.84 - Step 4: Simplify right side
4,930,013.12x = 25,355,178,117,065.47 - Step 5: Solve for x
x = 25,355,178,117,065.47/4,930,013.12 - Step 6: Final answer
x = 5,143,024.47
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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.