Finding the Fourth Proportional to 6,912,620.90, 10,368,931.35 and 5,484,947.30
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Solution
The fourth proportional to 6,912,620.90, 10,368,931.35 and 5,484,947.30 is: 8,227,420.95
Step by Step Solution
- Step 1: Write the proportion equation
6,912,620.90 : 10,368,931.35 = 5,484,947.30 : x - Step 2: Convert to fraction form
6,912,620.90/10,368,931.35 = 5,484,947.30/x - Step 3: Cross multiply
6,912,620.90x = 10,368,931.35 × 5,484,947.30 - Step 4: Simplify right side
6,912,620.90x = 56,873,042,012,067.85 - Step 5: Solve for x
x = 56,873,042,012,067.85/6,912,620.90 - Step 6: Final answer
x = 8,227,420.95
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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.