Finding the Fourth Proportional to 230,945,415.84, 318,704,563.44 and 138,125,921.76
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Solution
The fourth proportional to 230,945,415.84, 318,704,563.44 and 138,125,921.76 is: 190,613,705.99
Step by Step Solution
- Step 1: Write the proportion equation
230,945,415.84 : 318,704,563.44 = 138,125,921.76 : x - Step 2: Convert to fraction form
230,945,415.84/318,704,563.44 = 138,125,921.76/x - Step 3: Cross multiply
230,945,415.84x = 318,704,563.44 × 138,125,921.76 - Step 4: Simplify right side
230,945,415.84x = 44,021,361,594,268,392 - Step 5: Solve for x
x = 44,021,361,594,268,392/230,945,415.84 - Step 6: Final answer
x = 190,613,705.99
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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.