Finding the Fourth Proportional to 48,378,459.24, 66,757,840.56 and 28,804,109.40
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Solution
The fourth proportional to 48,378,459.24, 66,757,840.56 and 28,804,109.40 is: 39,747,031.49
Step by Step Solution
- Step 1: Write the proportion equation
48,378,459.24 : 66,757,840.56 = 28,804,109.40 : x - Step 2: Convert to fraction form
48,378,459.24/66,757,840.56 = 28,804,109.40/x - Step 3: Cross multiply
48,378,459.24x = 66,757,840.56 × 28,804,109.40 - Step 4: Simplify right side
48,378,459.24x = 1,922,900,142,797,997.25 - Step 5: Solve for x
x = 1,922,900,142,797,997.25/48,378,459.24 - Step 6: Final answer
x = 39,747,031.49
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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.