Finding the Fourth Proportional to 13,122,830.70, 19,684,246.05 and 9,721,608.30
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Solution
The fourth proportional to 13,122,830.70, 19,684,246.05 and 9,721,608.30 is: 14,582,412.45
Step by Step Solution
- Step 1: Write the proportion equation
13,122,830.70 : 19,684,246.05 = 9,721,608.30 : x - Step 2: Convert to fraction form
13,122,830.70/19,684,246.05 = 9,721,608.30/x - Step 3: Cross multiply
13,122,830.70x = 19,684,246.05 × 9,721,608.30 - Step 4: Simplify right side
13,122,830.70x = 191,362,529,778,922.25 - Step 5: Solve for x
x = 191,362,529,778,922.25/13,122,830.70 - Step 6: Final answer
x = 14,582,412.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.