Finding the Fourth Proportional to 476,953,735.20, 715,430,602.80 and 258,708,631.20
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Solution
The fourth proportional to 476,953,735.20, 715,430,602.80 and 258,708,631.20 is: 388,062,946.80
Step by Step Solution
- Step 1: Write the proportion equation
476,953,735.20 : 715,430,602.80 = 258,708,631.20 : x - Step 2: Convert to fraction form
476,953,735.20/715,430,602.80 = 258,708,631.20/x - Step 3: Cross multiply
476,953,735.20x = 715,430,602.80 × 258,708,631.20 - Step 4: Simplify right side
476,953,735.20x = 185,088,071,968,978,880 - Step 5: Solve for x
x = 185,088,071,968,978,880/476,953,735.20 - Step 6: Final answer
x = 388,062,946.80
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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.