Finding the Fourth Proportional to 38,211,786.84, 52,730,873.64 and 20,807,750.28
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Solution
The fourth proportional to 38,211,786.84, 52,730,873.64 and 20,807,750.28 is: 28,713,937.28
Step by Step Solution
- Step 1: Write the proportion equation
38,211,786.84 : 52,730,873.64 = 20,807,750.28 : x - Step 2: Convert to fraction form
38,211,786.84/52,730,873.64 = 20,807,750.28/x - Step 3: Cross multiply
38,211,786.84x = 52,730,873.64 × 20,807,750.28 - Step 4: Simplify right side
38,211,786.84x = 1,097,210,850,747,354.75 - Step 5: Solve for x
x = 1,097,210,850,747,354.75/38,211,786.84 - Step 6: Final answer
x = 28,713,937.28
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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.