Finding the Fourth Proportional to 2,157,269,797.71, 2,976,185,279.21 and 1,252,871,777.12
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Solution
The fourth proportional to 2,157,269,797.71, 2,976,185,279.21 and 1,252,871,777.12 is: 1,728,471,118.33
Step by Step Solution
- Step 1: Write the proportion equation
2,157,269,797.71 : 2,976,185,279.21 = 1,252,871,777.12 : x - Step 2: Convert to fraction form
2,157,269,797.71/2,976,185,279.21 = 1,252,871,777.12/x - Step 3: Cross multiply
2,157,269,797.71x = 2,976,185,279.21 × 1,252,871,777.12 - Step 4: Simplify right side
2,157,269,797.71x = 3,728,778,539,781,070,848 - Step 5: Solve for x
x = 3,728,778,539,781,070,848/2,157,269,797.71 - Step 6: Final answer
x = 1,728,471,118.33
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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.