Finding the Fourth Proportional to 5,312,610.70, 7,331,368.90 and 3,020,771.59
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Solution
The fourth proportional to 5,312,610.70, 7,331,368.90 and 3,020,771.59 is: 4,168,645.54
Step by Step Solution
- Step 1: Write the proportion equation
5,312,610.70 : 7,331,368.90 = 3,020,771.59 : x - Step 2: Convert to fraction form
5,312,610.70/7,331,368.90 = 3,020,771.59/x - Step 3: Cross multiply
5,312,610.70x = 7,331,368.90 × 3,020,771.59 - Step 4: Simplify right side
5,312,610.70x = 22,146,390,888,929.55 - Step 5: Solve for x
x = 22,146,390,888,929.55/5,312,610.70 - Step 6: Final answer
x = 4,168,645.54
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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.