Finding the Fourth Proportional to 85,497,726.40, 128,246,589.60 and 24,915,428.80
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Solution
The fourth proportional to 85,497,726.40, 128,246,589.60 and 24,915,428.80 is: 37,373,143.20
Step by Step Solution
- Step 1: Write the proportion equation
85,497,726.40 : 128,246,589.60 = 24,915,428.80 : x - Step 2: Convert to fraction form
85,497,726.40/128,246,589.60 = 24,915,428.80/x - Step 3: Cross multiply
85,497,726.40x = 128,246,589.60 × 24,915,428.80 - Step 4: Simplify right side
85,497,726.40x = 3,195,318,772,021,620.50 - Step 5: Solve for x
x = 3,195,318,772,021,620.50/85,497,726.40 - Step 6: Final answer
x = 37,373,143.20
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Similar ratio
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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.