Finding the Fourth Proportional to 42,801,278.40, 64,219,927.20 and 26,640,745.92
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Solution
The fourth proportional to 42,801,278.40, 64,219,927.20 and 26,640,745.92 is: 39,972,328.57
Step by Step Solution
- Step 1: Write the proportion equation
42,801,278.40 : 64,219,927.20 = 26,640,745.92 : x - Step 2: Convert to fraction form
42,801,278.40/64,219,927.20 = 26,640,745.92/x - Step 3: Cross multiply
42,801,278.40x = 64,219,927.20 × 26,640,745.92 - Step 4: Simplify right side
42,801,278.40x = 1,710,866,763,536,097.25 - Step 5: Solve for x
x = 1,710,866,763,536,097.25/42,801,278.40 - Step 6: Final answer
x = 39,972,328.57
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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.