Finding the Fourth Proportional to 7,718,372.68, 10,652,008.46 and 4,281,720.88
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Solution
The fourth proportional to 7,718,372.68, 10,652,008.46 and 4,281,720.88 is: 5,909,137.71
Step by Step Solution
- Step 1: Write the proportion equation
7,718,372.68 : 10,652,008.46 = 4,281,720.88 : x - Step 2: Convert to fraction form
7,718,372.68/10,652,008.46 = 4,281,720.88/x - Step 3: Cross multiply
7,718,372.68x = 10,652,008.46 × 4,281,720.88 - Step 4: Simplify right side
7,718,372.68x = 45,608,927,037,118.65 - Step 5: Solve for x
x = 45,608,927,037,118.65/7,718,372.68 - Step 6: Final answer
x = 5,909,137.71
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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.