Finding the Fourth Proportional to 138,292,151.41, 207,460,739.55 and 64,589,633.58
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Solution
The fourth proportional to 138,292,151.41, 207,460,739.55 and 64,589,633.58 is: 96,894,964.85
Step by Step Solution
- Step 1: Write the proportion equation
138,292,151.41 : 207,460,739.55 = 64,589,633.58 : x - Step 2: Convert to fraction form
138,292,151.41/207,460,739.55 = 64,589,633.58/x - Step 3: Cross multiply
138,292,151.41x = 207,460,739.55 × 64,589,633.58 - Step 4: Simplify right side
138,292,151.41x = 13,399,813,150,426,864 - Step 5: Solve for x
x = 13,399,813,150,426,864/138,292,151.41 - Step 6: Final answer
x = 96,894,964.85
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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.