Finding the Fourth Proportional to 117,502,235.18, 162,149,859.74 and 65,289,928.40
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Solution
The fourth proportional to 117,502,235.18, 162,149,859.74 and 65,289,928.40 is: 90,098,309.33
Step by Step Solution
- Step 1: Write the proportion equation
117,502,235.18 : 162,149,859.74 = 65,289,928.40 : x - Step 2: Convert to fraction form
117,502,235.18/162,149,859.74 = 65,289,928.40/x - Step 3: Cross multiply
117,502,235.18x = 162,149,859.74 × 65,289,928.40 - Step 4: Simplify right side
117,502,235.18x = 10,586,752,732,168,194 - Step 5: Solve for x
x = 10,586,752,732,168,194/117,502,235.18 - Step 6: Final answer
x = 90,098,309.33
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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.