Finding the Fourth Proportional to 97,023,603.60, 145,535,405.40 and 79,804,915.20
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Solution
The fourth proportional to 97,023,603.60, 145,535,405.40 and 79,804,915.20 is: 119,707,372.80
Step by Step Solution
- Step 1: Write the proportion equation
97,023,603.60 : 145,535,405.40 = 79,804,915.20 : x - Step 2: Convert to fraction form
97,023,603.60/145,535,405.40 = 79,804,915.20/x - Step 3: Cross multiply
97,023,603.60x = 145,535,405.40 × 79,804,915.20 - Step 4: Simplify right side
97,023,603.60x = 11,614,440,686,544,622 - Step 5: Solve for x
x = 11,614,440,686,544,622/97,023,603.60 - Step 6: Final answer
x = 119,707,372.80
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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.