Finding the Fourth Proportional to 5,667,430.74, 7,821,056.64 and 3,220,045.02
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Solution
The fourth proportional to 5,667,430.74, 7,821,056.64 and 3,220,045.02 is: 4,443,663.39
Step by Step Solution
- Step 1: Write the proportion equation
5,667,430.74 : 7,821,056.64 = 3,220,045.02 : x - Step 2: Convert to fraction form
5,667,430.74/7,821,056.64 = 3,220,045.02/x - Step 3: Cross multiply
5,667,430.74x = 7,821,056.64 × 3,220,045.02 - Step 4: Simplify right side
5,667,430.74x = 25,184,154,484,769.93 - Step 5: Solve for x
x = 25,184,154,484,769.93/5,667,430.74 - Step 6: Final answer
x = 4,443,663.39
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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.