Finding the Fourth Proportional to 13,005,829.60, 19,487,749.20 and 8,204,927.20
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Solution
The fourth proportional to 13,005,829.60, 19,487,749.20 and 8,204,927.20 is: 12,294,145.66
Step by Step Solution
- Step 1: Write the proportion equation
13,005,829.60 : 19,487,749.20 = 8,204,927.20 : x - Step 2: Convert to fraction form
13,005,829.60/19,487,749.20 = 8,204,927.20/x - Step 3: Cross multiply
13,005,829.60x = 19,487,749.20 × 8,204,927.20 - Step 4: Simplify right side
13,005,829.60x = 159,895,563,477,858.25 - Step 5: Solve for x
x = 159,895,563,477,858.25/13,005,829.60 - Step 6: Final answer
x = 12,294,145.66
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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.