Finding the Fourth Proportional to 18,774,968.34, 28,165,631.87 and 6,475,591.99
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Solution
The fourth proportional to 18,774,968.34, 28,165,631.87 and 6,475,591.99 is: 9,714,484.56
Step by Step Solution
- Step 1: Write the proportion equation
18,774,968.34 : 28,165,631.87 = 6,475,591.99 : x - Step 2: Convert to fraction form
18,774,968.34/28,165,631.87 = 6,475,591.99/x - Step 3: Cross multiply
18,774,968.34x = 28,165,631.87 × 6,475,591.99 - Step 4: Simplify right side
18,774,968.34x = 182,389,140,130,660.72 - Step 5: Solve for x
x = 182,389,140,130,660.72/18,774,968.34 - Step 6: Final answer
x = 9,714,484.56
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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.