Finding the Fourth Proportional to 332,121,749.28, 497,989,886.09 and 157,243,315.13
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Solution
The fourth proportional to 332,121,749.28, 497,989,886.09 and 157,243,315.13 is: 235,773,720.81
Step by Step Solution
- Step 1: Write the proportion equation
332,121,749.28 : 497,989,886.09 = 157,243,315.13 : x - Step 2: Convert to fraction form
332,121,749.28/497,989,886.09 = 157,243,315.13/x - Step 3: Cross multiply
332,121,749.28x = 497,989,886.09 × 157,243,315.13 - Step 4: Simplify right side
332,121,749.28x = 78,305,580,591,051,088 - Step 5: Solve for x
x = 78,305,580,591,051,088/332,121,749.28 - Step 6: Final answer
x = 235,773,720.81
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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.