Finding the Fourth Proportional to 38,316,147.12, 52,875,533.52 and 20,912,617.12
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Solution
The fourth proportional to 38,316,147.12, 52,875,533.52 and 20,912,617.12 is: 28,859,002.55
Step by Step Solution
- Step 1: Write the proportion equation
38,316,147.12 : 52,875,533.52 = 20,912,617.12 : x - Step 2: Convert to fraction form
38,316,147.12/52,875,533.52 = 20,912,617.12/x - Step 3: Cross multiply
38,316,147.12x = 52,875,533.52 × 20,912,617.12 - Step 4: Simplify right side
38,316,147.12x = 1,105,765,787,519,486 - Step 5: Solve for x
x = 1,105,765,787,519,486/38,316,147.12 - Step 6: Final answer
x = 28,859,002.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.