Finding the Fourth Proportional to 77,239,364.76, 106,571,947.32 and 43,749,133.92
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Solution
The fourth proportional to 77,239,364.76, 106,571,947.32 and 43,749,133.92 is: 60,363,396.44
Step by Step Solution
- Step 1: Write the proportion equation
77,239,364.76 : 106,571,947.32 = 43,749,133.92 : x - Step 2: Convert to fraction form
77,239,364.76/106,571,947.32 = 43,749,133.92/x - Step 3: Cross multiply
77,239,364.76x = 106,571,947.32 × 43,749,133.92 - Step 4: Simplify right side
77,239,364.76x = 4,662,430,395,417,865 - Step 5: Solve for x
x = 4,662,430,395,417,865/77,239,364.76 - Step 6: Final answer
x = 60,363,396.44
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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.