Finding the Fourth Proportional to 2,125,768,672.80, 3,188,653,009.20 and 1,789,047,655.20
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Solution
The fourth proportional to 2,125,768,672.80, 3,188,653,009.20 and 1,789,047,655.20 is: 2,683,571,482.80
Step by Step Solution
- Step 1: Write the proportion equation
2,125,768,672.80 : 3,188,653,009.20 = 1,789,047,655.20 : x - Step 2: Convert to fraction form
2,125,768,672.80/3,188,653,009.20 = 1,789,047,655.20/x - Step 3: Cross multiply
2,125,768,672.80x = 3,188,653,009.20 × 1,789,047,655.20 - Step 4: Simplify right side
2,125,768,672.80x = 5,704,652,189,355,683,840 - Step 5: Solve for x
x = 5,704,652,189,355,683,840/2,125,768,672.80 - Step 6: Final answer
x = 2,683,571,482.80
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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.