Finding the Fourth Proportional to 5,089,616.76, 7,021,330.03 and 4,509,432.09
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Solution
The fourth proportional to 5,089,616.76, 7,021,330.03 and 4,509,432.09 is: 6,220,942.06
Step by Step Solution
- Step 1: Write the proportion equation
5,089,616.76 : 7,021,330.03 = 4,509,432.09 : x - Step 2: Convert to fraction form
5,089,616.76/7,021,330.03 = 4,509,432.09/x - Step 3: Cross multiply
5,089,616.76x = 7,021,330.03 × 4,509,432.09 - Step 4: Simplify right side
5,089,616.76x = 31,662,210,951,762.66 - Step 5: Solve for x
x = 31,662,210,951,762.66/5,089,616.76 - Step 6: Final answer
x = 6,220,942.06
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Double scale
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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.