Finding the Fourth Proportional to 13,579,270.99, 18,739,886.63 and 7,779,173.65
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Solution
The fourth proportional to 13,579,270.99, 18,739,886.63 and 7,779,173.65 is: 10,735,541.87
Step by Step Solution
- Step 1: Write the proportion equation
13,579,270.99 : 18,739,886.63 = 7,779,173.65 : x - Step 2: Convert to fraction form
13,579,270.99/18,739,886.63 = 7,779,173.65/x - Step 3: Cross multiply
13,579,270.99x = 18,739,886.63 × 7,779,173.65 - Step 4: Simplify right side
13,579,270.99x = 145,780,832,190,337.72 - Step 5: Solve for x
x = 145,780,832,190,337.72/13,579,270.99 - Step 6: Final answer
x = 10,735,541.87
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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.