Finding the Fourth Proportional to 157,361,659.20, 236,042,488.80 and 119,097,907.20
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Solution
The fourth proportional to 157,361,659.20, 236,042,488.80 and 119,097,907.20 is: 178,646,860.80
Step by Step Solution
- Step 1: Write the proportion equation
157,361,659.20 : 236,042,488.80 = 119,097,907.20 : x - Step 2: Convert to fraction form
157,361,659.20/236,042,488.80 = 119,097,907.20/x - Step 3: Cross multiply
157,361,659.20x = 236,042,488.80 × 119,097,907.20 - Step 4: Simplify right side
157,361,659.20x = 28,112,166,426,359,440 - Step 5: Solve for x
x = 28,112,166,426,359,440/157,361,659.20 - Step 6: Final answer
x = 178,646,860.80
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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.