Finding the Fourth Proportional to 10,667,631.12, 15,994,966.84 and 4,182,937.68
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Solution
The fourth proportional to 10,667,631.12, 15,994,966.84 and 4,182,937.68 is: 6,271,865.68
Step by Step Solution
- Step 1: Write the proportion equation
10,667,631.12 : 15,994,966.84 = 4,182,937.68 : x - Step 2: Convert to fraction form
10,667,631.12/15,994,966.84 = 4,182,937.68/x - Step 3: Cross multiply
10,667,631.12x = 15,994,966.84 × 4,182,937.68 - Step 4: Simplify right side
10,667,631.12x = 66,905,949,485,386.53 - Step 5: Solve for x
x = 66,905,949,485,386.53/10,667,631.12 - Step 6: Final answer
x = 6,271,865.68
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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.