Finding the Fourth Proportional to 782,747,524.60, 1,080,192,278.76 and 430,329,511.36
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Solution
The fourth proportional to 782,747,524.60, 1,080,192,278.76 and 430,329,511.36 is: 593,855,107.66
Step by Step Solution
- Step 1: Write the proportion equation
782,747,524.60 : 1,080,192,278.76 = 430,329,511.36 : x - Step 2: Convert to fraction form
782,747,524.60/1,080,192,278.76 = 430,329,511.36/x - Step 3: Cross multiply
782,747,524.60x = 1,080,192,278.76 × 430,329,511.36 - Step 4: Simplify right side
782,747,524.60x = 464,838,615,493,635,712 - Step 5: Solve for x
x = 464,838,615,493,635,712/782,747,524.60 - Step 6: Final answer
x = 593,855,107.66
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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.