Finding the Fourth Proportional to 395,363,062.21, 545,589,201.31 and 216,740,841.53
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Solution
The fourth proportional to 395,363,062.21, 545,589,201.31 and 216,740,841.53 is: 299,095,879.01
Step by Step Solution
- Step 1: Write the proportion equation
395,363,062.21 : 545,589,201.31 = 216,740,841.53 : x - Step 2: Convert to fraction form
395,363,062.21/545,589,201.31 = 216,740,841.53/x - Step 3: Cross multiply
395,363,062.21x = 545,589,201.31 × 216,740,841.53 - Step 4: Simplify right side
395,363,062.21x = 118,251,462,621,609,968 - Step 5: Solve for x
x = 118,251,462,621,609,968/395,363,062.21 - Step 6: Final answer
x = 299,095,879.01
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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.