Finding the Fourth Proportional to 7,403,176.76, 10,212,280.62 and 4,305,360.92
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Solution
The fourth proportional to 7,403,176.76, 10,212,280.62 and 4,305,360.92 is: 5,939,011.77
Step by Step Solution
- Step 1: Write the proportion equation
7,403,176.76 : 10,212,280.62 = 4,305,360.92 : x - Step 2: Convert to fraction form
7,403,176.76/10,212,280.62 = 4,305,360.92/x - Step 3: Cross multiply
7,403,176.76x = 10,212,280.62 × 4,305,360.92 - Step 4: Simplify right side
7,403,176.76x = 43,967,553,885,421.37 - Step 5: Solve for x
x = 43,967,553,885,421.37/7,403,176.76 - Step 6: Final answer
x = 5,939,011.77
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1.5x scale
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.