Finding the Fourth Proportional to 368,802,262.80, 553,203,394.20 and 347,639,101.20
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Solution
The fourth proportional to 368,802,262.80, 553,203,394.20 and 347,639,101.20 is: 521,458,651.80
Step by Step Solution
- Step 1: Write the proportion equation
368,802,262.80 : 553,203,394.20 = 347,639,101.20 : x - Step 2: Convert to fraction form
368,802,262.80/553,203,394.20 = 347,639,101.20/x - Step 3: Cross multiply
368,802,262.80x = 553,203,394.20 × 347,639,101.20 - Step 4: Simplify right side
368,802,262.80x = 192,315,130,740,477,312 - Step 5: Solve for x
x = 192,315,130,740,477,312/368,802,262.80 - Step 6: Final answer
x = 521,458,651.80
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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.