Finding the Fourth Proportional to 38,289,328.40, 57,386,097.30 and 19,125,434.72
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Solution
The fourth proportional to 38,289,328.40, 57,386,097.30 and 19,125,434.72 is: 28,664,228.48
Step by Step Solution
- Step 1: Write the proportion equation
38,289,328.40 : 57,386,097.30 = 19,125,434.72 : x - Step 2: Convert to fraction form
38,289,328.40/57,386,097.30 = 19,125,434.72/x - Step 3: Cross multiply
38,289,328.40x = 57,386,097.30 × 19,125,434.72 - Step 4: Simplify right side
38,289,328.40x = 1,097,534,057,746,718.12 - Step 5: Solve for x
x = 1,097,534,057,746,718.12/38,289,328.40 - Step 6: Final answer
x = 28,664,228.48
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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.