Finding the Fourth Proportional to 4,989,742.89, 6,885,805.07 and 2,896,779.53
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Solution
The fourth proportional to 4,989,742.89, 6,885,805.07 and 2,896,779.53 is: 3,997,532.46
Step by Step Solution
- Step 1: Write the proportion equation
4,989,742.89 : 6,885,805.07 = 2,896,779.53 : x - Step 2: Convert to fraction form
4,989,742.89/6,885,805.07 = 2,896,779.53/x - Step 3: Cross multiply
4,989,742.89x = 6,885,805.07 × 2,896,779.53 - Step 4: Simplify right side
4,989,742.89x = 19,946,659,174,346.21 - Step 5: Solve for x
x = 19,946,659,174,346.21/4,989,742.89 - Step 6: Final answer
x = 3,997,532.46
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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.