Finding the Fourth Proportional to 39,779,293.79, 54,892,457.85 and 22,372,275.99
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Solution
The fourth proportional to 39,779,293.79, 54,892,457.85 and 22,372,275.99 is: 30,872,071.87
Step by Step Solution
- Step 1: Write the proportion equation
39,779,293.79 : 54,892,457.85 = 22,372,275.99 : x - Step 2: Convert to fraction form
39,779,293.79/54,892,457.85 = 22,372,275.99/x - Step 3: Cross multiply
39,779,293.79x = 54,892,457.85 × 22,372,275.99 - Step 4: Simplify right side
39,779,293.79x = 1,228,069,216,739,259 - Step 5: Solve for x
x = 1,228,069,216,739,259/39,779,293.79 - Step 6: Final answer
x = 30,872,071.87
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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.