Finding the Fourth Proportional to 415,358,357.19, 573,371,024.93 and 258,802,814.21
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Solution
The fourth proportional to 415,358,357.19, 573,371,024.93 and 258,802,814.21 is: 357,257,852.81
Step by Step Solution
- Step 1: Write the proportion equation
415,358,357.19 : 573,371,024.93 = 258,802,814.21 : x - Step 2: Convert to fraction form
415,358,357.19/573,371,024.93 = 258,802,814.21/x - Step 3: Cross multiply
415,358,357.19x = 573,371,024.93 × 258,802,814.21 - Step 4: Simplify right side
415,358,357.19x = 148,390,034,835,165,728 - Step 5: Solve for x
x = 148,390,034,835,165,728/415,358,357.19 - Step 6: Final answer
x = 357,257,852.81
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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.