Finding the Fourth Proportional to 1,871,474,157.40, 2,807,641,758.64 and 628,069,621.32
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Solution
The fourth proportional to 1,871,474,157.40, 2,807,641,758.64 and 628,069,621.32 is: 942,248,916.01
Step by Step Solution
- Step 1: Write the proportion equation
1,871,474,157.40 : 2,807,641,758.64 = 628,069,621.32 : x - Step 2: Convert to fraction form
1,871,474,157.40/2,807,641,758.64 = 628,069,621.32/x - Step 3: Cross multiply
1,871,474,157.40x = 2,807,641,758.64 × 628,069,621.32 - Step 4: Simplify right side
1,871,474,157.40x = 1,763,394,496,151,243,776 - Step 5: Solve for x
x = 1,763,394,496,151,243,776/1,871,474,157.40 - Step 6: Final answer
x = 942,248,916.01
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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.