Finding the Fourth Proportional to 19,577,029.60, 29,365,544.40 and 8,239,621.60
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Solution
The fourth proportional to 19,577,029.60, 29,365,544.40 and 8,239,621.60 is: 12,359,432.40
Step by Step Solution
- Step 1: Write the proportion equation
19,577,029.60 : 29,365,544.40 = 8,239,621.60 : x - Step 2: Convert to fraction form
19,577,029.60/29,365,544.40 = 8,239,621.60/x - Step 3: Cross multiply
19,577,029.60x = 29,365,544.40 × 8,239,621.60 - Step 4: Simplify right side
19,577,029.60x = 241,960,973,933,999.03 - Step 5: Solve for x
x = 241,960,973,933,999.03/19,577,029.60 - Step 6: Final answer
x = 12,359,432.40
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1.5x scale
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.