Finding the Fourth Proportional to 165,888,129.20, 248,832,193.80 and 155,271,297.20
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Solution
The fourth proportional to 165,888,129.20, 248,832,193.80 and 155,271,297.20 is: 232,906,945.80
Step by Step Solution
- Step 1: Write the proportion equation
165,888,129.20 : 248,832,193.80 = 155,271,297.20 : x - Step 2: Convert to fraction form
165,888,129.20/248,832,193.80 = 155,271,297.20/x - Step 3: Cross multiply
165,888,129.20x = 248,832,193.80 × 155,271,297.20 - Step 4: Simplify right side
165,888,129.20x = 38,636,497,516,447,800 - Step 5: Solve for x
x = 38,636,497,516,447,800/165,888,129.20 - Step 6: Final answer
x = 232,906,945.80
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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.