Finding the Fourth Proportional to 523,346,488.74, 722,222,930.70 and 288,405,578.88
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Solution
The fourth proportional to 523,346,488.74, 722,222,930.70 and 288,405,578.88 is: 398,002,330.94
Step by Step Solution
- Step 1: Write the proportion equation
523,346,488.74 : 722,222,930.70 = 288,405,578.88 : x - Step 2: Convert to fraction form
523,346,488.74/722,222,930.70 = 288,405,578.88/x - Step 3: Cross multiply
523,346,488.74x = 722,222,930.70 × 288,405,578.88 - Step 4: Simplify right side
523,346,488.74x = 208,293,122,408,943,648 - Step 5: Solve for x
x = 208,293,122,408,943,648/523,346,488.74 - Step 6: Final answer
x = 398,002,330.94
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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.