Finding the Fourth Proportional to 415,358,479.20, 573,371,193.72 and 258,802,937.13
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Solution
The fourth proportional to 415,358,479.20, 573,371,193.72 and 258,802,937.13 is: 357,258,022.72
Step by Step Solution
- Step 1: Write the proportion equation
415,358,479.20 : 573,371,193.72 = 258,802,937.13 : x - Step 2: Convert to fraction form
415,358,479.20/573,371,193.72 = 258,802,937.13/x - Step 3: Cross multiply
415,358,479.20x = 573,371,193.72 × 258,802,937.13 - Step 4: Simplify right side
415,358,479.20x = 148,390,149,000,470,208 - Step 5: Solve for x
x = 148,390,149,000,470,208/415,358,479.20 - Step 6: Final answer
x = 357,258,022.72
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.