Finding the Fourth Proportional to 7,903,319.76, 10,906,512.84 and 4,281,639.12
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Solution
The fourth proportional to 7,903,319.76, 10,906,512.84 and 4,281,639.12 is: 5,908,624.91
Step by Step Solution
- Step 1: Write the proportion equation
7,903,319.76 : 10,906,512.84 = 4,281,639.12 : x - Step 2: Convert to fraction form
7,903,319.76/10,906,512.84 = 4,281,639.12/x - Step 3: Cross multiply
7,903,319.76x = 10,906,512.84 × 4,281,639.12 - Step 4: Simplify right side
7,903,319.76x = 46,697,752,038,526.30 - Step 5: Solve for x
x = 46,697,752,038,526.30/7,903,319.76 - Step 6: Final answer
x = 5,908,624.91
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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.