Finding the Fourth Proportional to 7,151,285.46, 9,868,967.46 and 3,888,319.26
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Solution
The fourth proportional to 7,151,285.46, 9,868,967.46 and 3,888,319.26 is: 5,365,985.80
Step by Step Solution
- Step 1: Write the proportion equation
7,151,285.46 : 9,868,967.46 = 3,888,319.26 : x - Step 2: Convert to fraction form
7,151,285.46/9,868,967.46 = 3,888,319.26/x - Step 3: Cross multiply
7,151,285.46x = 9,868,967.46 × 3,888,319.26 - Step 4: Simplify right side
7,151,285.46x = 38,373,696,251,031.28 - Step 5: Solve for x
x = 38,373,696,251,031.28/7,151,285.46 - Step 6: Final answer
x = 5,365,985.80
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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.