Finding the Fourth Proportional to 764,871,511.80, 1,149,007,878.90 and 735,961,121.40
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Solution
The fourth proportional to 764,871,511.80, 1,149,007,878.90 and 735,961,121.40 is: 1,105,578,014.09
Step by Step Solution
- Step 1: Write the proportion equation
764,871,511.80 : 1,149,007,878.90 = 735,961,121.40 : x - Step 2: Convert to fraction form
764,871,511.80/1,149,007,878.90 = 735,961,121.40/x - Step 3: Cross multiply
764,871,511.80x = 1,149,007,878.90 × 735,961,121.40 - Step 4: Simplify right side
764,871,511.80x = 845,625,127,052,679,424 - Step 5: Solve for x
x = 845,625,127,052,679,424/764,871,511.80 - Step 6: Final answer
x = 1,105,578,014.09
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1.5x scale
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.