Finding the Fourth Proportional to 442,673,241.80, 664,009,862.70 and 135,964,862.60
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Solution
The fourth proportional to 442,673,241.80, 664,009,862.70 and 135,964,862.60 is: 203,947,293.90
Step by Step Solution
- Step 1: Write the proportion equation
442,673,241.80 : 664,009,862.70 = 135,964,862.60 : x - Step 2: Convert to fraction form
442,673,241.80/664,009,862.70 = 135,964,862.60/x - Step 3: Cross multiply
442,673,241.80x = 664,009,862.70 × 135,964,862.60 - Step 4: Simplify right side
442,673,241.80x = 90,282,009,747,050,368 - Step 5: Solve for x
x = 90,282,009,747,050,368/442,673,241.80 - Step 6: Final answer
x = 203,947,293.90
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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.