Finding the Fourth Proportional to 28,009,238.99, 38,652,918.44 and 15,620,115.67
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Solution
The fourth proportional to 28,009,238.99, 38,652,918.44 and 15,620,115.67 is: 21,555,853.67
Step by Step Solution
- Step 1: Write the proportion equation
28,009,238.99 : 38,652,918.44 = 15,620,115.67 : x - Step 2: Convert to fraction form
28,009,238.99/38,652,918.44 = 15,620,115.67/x - Step 3: Cross multiply
28,009,238.99x = 38,652,918.44 × 15,620,115.67 - Step 4: Simplify right side
28,009,238.99x = 603,763,056,841,143.12 - Step 5: Solve for x
x = 603,763,056,841,143.12/28,009,238.99 - Step 6: Final answer
x = 21,555,853.67
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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.