Finding the Fourth Proportional to 15,009,701.18, 20,713,405.36 and 8,134,183.24
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Solution
The fourth proportional to 15,009,701.18, 20,713,405.36 and 8,134,183.24 is: 11,225,182.48
Step by Step Solution
- Step 1: Write the proportion equation
15,009,701.18 : 20,713,405.36 = 8,134,183.24 : x - Step 2: Convert to fraction form
15,009,701.18/20,713,405.36 = 8,134,183.24/x - Step 3: Cross multiply
15,009,701.18x = 20,713,405.36 × 8,134,183.24 - Step 4: Simplify right side
15,009,701.18x = 168,486,634,722,638.16 - Step 5: Solve for x
x = 168,486,634,722,638.16/15,009,701.18 - Step 6: Final answer
x = 11,225,182.48
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1.5x scale
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.