Finding the Fourth Proportional to 6,912,392.90, 10,363,405.35 and 3,549,013.70
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Solution
The fourth proportional to 6,912,392.90, 10,363,405.35 and 3,549,013.70 is: 5,320,858.94
Step by Step Solution
- Step 1: Write the proportion equation
6,912,392.90 : 10,363,405.35 = 3,549,013.70 : x - Step 2: Convert to fraction form
6,912,392.90/10,363,405.35 = 3,549,013.70/x - Step 3: Cross multiply
6,912,392.90x = 10,363,405.35 × 3,549,013.70 - Step 4: Simplify right side
6,912,392.90x = 36,779,867,565,803.30 - Step 5: Solve for x
x = 36,779,867,565,803.30/6,912,392.90 - Step 6: Final answer
x = 5,320,858.94
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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.