Finding the Fourth Proportional to 871,344,117.40, 1,307,016,176.10 and 804,831,323.80
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Solution
The fourth proportional to 871,344,117.40, 1,307,016,176.10 and 804,831,323.80 is: 1,207,246,985.70
Step by Step Solution
- Step 1: Write the proportion equation
871,344,117.40 : 1,307,016,176.10 = 804,831,323.80 : x - Step 2: Convert to fraction form
871,344,117.40/1,307,016,176.10 = 804,831,323.80/x - Step 3: Cross multiply
871,344,117.40x = 1,307,016,176.10 × 804,831,323.80 - Step 4: Simplify right side
871,344,117.40x = 1,051,927,559,238,576,768 - Step 5: Solve for x
x = 1,051,927,559,238,576,768/871,344,117.40 - Step 6: Final answer
x = 1,207,246,985.70
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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.