Finding the Fourth Proportional to 15,779,829.99, 21,775,951.30 and 8,810,614.69
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Solution
The fourth proportional to 15,779,829.99, 21,775,951.30 and 8,810,614.69 is: 12,158,528.74
Step by Step Solution
- Step 1: Write the proportion equation
15,779,829.99 : 21,775,951.30 = 8,810,614.69 : x - Step 2: Convert to fraction form
15,779,829.99/21,775,951.30 = 8,810,614.69/x - Step 3: Cross multiply
15,779,829.99x = 21,775,951.30 × 8,810,614.69 - Step 4: Simplify right side
15,779,829.99x = 191,859,516,412,504.59 - Step 5: Solve for x
x = 191,859,516,412,504.59/15,779,829.99 - Step 6: Final answer
x = 12,158,528.74
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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.