Finding the Fourth Proportional to 97,251,235.20, 145,876,852.80 and 74,576,419.20
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Solution
The fourth proportional to 97,251,235.20, 145,876,852.80 and 74,576,419.20 is: 111,864,628.80
Step by Step Solution
- Step 1: Write the proportion equation
97,251,235.20 : 145,876,852.80 = 74,576,419.20 : x - Step 2: Convert to fraction form
97,251,235.20/145,876,852.80 = 74,576,419.20/x - Step 3: Cross multiply
97,251,235.20x = 145,876,852.80 × 74,576,419.20 - Step 4: Simplify right side
97,251,235.20x = 10,878,973,325,989,496 - Step 5: Solve for x
x = 10,878,973,325,989,496/97,251,235.20 - Step 6: Final answer
x = 111,864,628.80
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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.