Finding the Fourth Proportional to 19,660,277.80, 29,490,416.70 and 13,235,746.60
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Solution
The fourth proportional to 19,660,277.80, 29,490,416.70 and 13,235,746.60 is: 19,853,619.90
Step by Step Solution
- Step 1: Write the proportion equation
19,660,277.80 : 29,490,416.70 = 13,235,746.60 : x - Step 2: Convert to fraction form
19,660,277.80/29,490,416.70 = 13,235,746.60/x - Step 3: Cross multiply
19,660,277.80x = 29,490,416.70 × 13,235,746.60 - Step 4: Simplify right side
19,660,277.80x = 390,327,682,569,608.19 - Step 5: Solve for x
x = 390,327,682,569,608.19/19,660,277.80 - Step 6: Final answer
x = 19,853,619.90
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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.