Finding the Fourth Proportional to 312,203,828.07, 468,124,221.78 and 118,130,210.82
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Solution
The fourth proportional to 312,203,828.07, 468,124,221.78 and 118,130,210.82 is: 177,126,633.43
Step by Step Solution
- Step 1: Write the proportion equation
312,203,828.07 : 468,124,221.78 = 118,130,210.82 : x - Step 2: Convert to fraction form
312,203,828.07/468,124,221.78 = 118,130,210.82/x - Step 3: Cross multiply
312,203,828.07x = 468,124,221.78 × 118,130,210.82 - Step 4: Simplify right side
312,203,828.07x = 55,299,613,008,819,832 - Step 5: Solve for x
x = 55,299,613,008,819,832/312,203,828.07 - Step 6: Final answer
x = 177,126,633.43
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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.