Finding the Fourth Proportional to 48,213,744.57, 66,533,835.87 and 28,368,795.30
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Solution
The fourth proportional to 48,213,744.57, 66,533,835.87 and 28,368,795.30 is: 39,148,271.66
Step by Step Solution
- Step 1: Write the proportion equation
48,213,744.57 : 66,533,835.87 = 28,368,795.30 : x - Step 2: Convert to fraction form
48,213,744.57/66,533,835.87 = 28,368,795.30/x - Step 3: Cross multiply
48,213,744.57x = 66,533,835.87 × 28,368,795.30 - Step 4: Simplify right side
48,213,744.57x = 1,887,484,769,987,158.25 - Step 5: Solve for x
x = 1,887,484,769,987,158.25/48,213,744.57 - Step 6: Final answer
x = 39,148,271.66
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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.