Finding the Fourth Proportional to 256,260,679.08, 384,456,541.26 and 74,507,857.08
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Solution
The fourth proportional to 256,260,679.08, 384,456,541.26 and 74,507,857.08 is: 111,780,836.34
Step by Step Solution
- Step 1: Write the proportion equation
256,260,679.08 : 384,456,541.26 = 74,507,857.08 : x - Step 2: Convert to fraction form
256,260,679.08/384,456,541.26 = 74,507,857.08/x - Step 3: Cross multiply
256,260,679.08x = 384,456,541.26 × 74,507,857.08 - Step 4: Simplify right side
256,260,679.08x = 28,645,033,029,671,200 - Step 5: Solve for x
x = 28,645,033,029,671,200/256,260,679.08 - Step 6: Final answer
x = 111,780,836.34
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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.