Finding the Fourth Proportional to 6,390,951.55, 8,819,730.76 and 3,779,694.06
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Solution
The fourth proportional to 6,390,951.55, 8,819,730.76 and 3,779,694.06 is: 5,216,106.50
Step by Step Solution
- Step 1: Write the proportion equation
6,390,951.55 : 8,819,730.76 = 3,779,694.06 : x - Step 2: Convert to fraction form
6,390,951.55/8,819,730.76 = 3,779,694.06/x - Step 3: Cross multiply
6,390,951.55x = 8,819,730.76 × 3,779,694.06 - Step 4: Simplify right side
6,390,951.55x = 33,335,883,928,934.99 - Step 5: Solve for x
x = 33,335,883,928,934.99/6,390,951.55 - Step 6: Final answer
x = 5,216,106.50
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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.