Finding the Fourth Proportional to 7,238,416.80, 10,865,919.60 and 4,248,285.60
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Solution
The fourth proportional to 7,238,416.80, 10,865,919.60 and 4,248,285.60 is: 6,377,296.45
Step by Step Solution
- Step 1: Write the proportion equation
7,238,416.80 : 10,865,919.60 = 4,248,285.60 : x - Step 2: Convert to fraction form
7,238,416.80/10,865,919.60 = 4,248,285.60/x - Step 3: Cross multiply
7,238,416.80x = 10,865,919.60 × 4,248,285.60 - Step 4: Simplify right side
7,238,416.80x = 46,161,529,767,437.76 - Step 5: Solve for x
x = 46,161,529,767,437.76/7,238,416.80 - Step 6: Final answer
x = 6,377,296.45
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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.