Finding the Fourth Proportional to 101,646,413.37, 140,271,943.68 and 55,236,568.05
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Solution
The fourth proportional to 101,646,413.37, 140,271,943.68 and 55,236,568.05 is: 76,226,405.89
Step by Step Solution
- Step 1: Write the proportion equation
101,646,413.37 : 140,271,943.68 = 55,236,568.05 : x - Step 2: Convert to fraction form
101,646,413.37/140,271,943.68 = 55,236,568.05/x - Step 3: Cross multiply
101,646,413.37x = 140,271,943.68 × 55,236,568.05 - Step 4: Simplify right side
101,646,413.37x = 7,748,140,762,586,087 - Step 5: Solve for x
x = 7,748,140,762,586,087/101,646,413.37 - Step 6: Final answer
x = 76,226,405.89
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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.