Finding the Fourth Proportional to 100,635,628.68, 138,791,121.57 and 69,323,649.84
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Solution
The fourth proportional to 100,635,628.68, 138,791,121.57 and 69,323,649.84 is: 95,607,363.30
Step by Step Solution
- Step 1: Write the proportion equation
100,635,628.68 : 138,791,121.57 = 69,323,649.84 : x - Step 2: Convert to fraction form
100,635,628.68/138,791,121.57 = 69,323,649.84/x - Step 3: Cross multiply
100,635,628.68x = 138,791,121.57 × 69,323,649.84 - Step 4: Simplify right side
100,635,628.68x = 9,621,507,112,619,552 - Step 5: Solve for x
x = 9,621,507,112,619,552/100,635,628.68 - Step 6: Final answer
x = 95,607,363.30
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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.