Finding the Fourth Proportional to 168,374,425.32, 232,357,406.74 and 91,112,089.32
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Solution
The fourth proportional to 168,374,425.32, 232,357,406.74 and 91,112,089.32 is: 125,735,061.94
Step by Step Solution
- Step 1: Write the proportion equation
168,374,425.32 : 232,357,406.74 = 91,112,089.32 : x - Step 2: Convert to fraction form
168,374,425.32/232,357,406.74 = 91,112,089.32/x - Step 3: Cross multiply
168,374,425.32x = 232,357,406.74 × 91,112,089.32 - Step 4: Simplify right side
168,374,425.32x = 21,170,568,797,058,448 - Step 5: Solve for x
x = 21,170,568,797,058,448/168,374,425.32 - Step 6: Final answer
x = 125,735,061.94
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1.5x scale
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.