Finding the Fourth Proportional to 38,289,317.40, 57,386,080.80 and 19,125,423.72
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Solution
The fourth proportional to 38,289,317.40, 57,386,080.80 and 19,125,423.72 is: 28,664,211.99
Step by Step Solution
- Step 1: Write the proportion equation
38,289,317.40 : 57,386,080.80 = 19,125,423.72 : x - Step 2: Convert to fraction form
38,289,317.40/57,386,080.80 = 19,125,423.72/x - Step 3: Cross multiply
38,289,317.40x = 57,386,080.80 × 19,125,423.72 - Step 4: Simplify right side
38,289,317.40x = 1,097,533,110,930,156.50 - Step 5: Solve for x
x = 1,097,533,110,930,156.50/38,289,317.40 - Step 6: Final answer
x = 28,664,211.99
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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.