Finding the Fourth Proportional to 381,704,947.80, 572,557,421.70 and 177,165,043.80
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Solution
The fourth proportional to 381,704,947.80, 572,557,421.70 and 177,165,043.80 is: 265,747,565.70
Step by Step Solution
- Step 1: Write the proportion equation
381,704,947.80 : 572,557,421.70 = 177,165,043.80 : x - Step 2: Convert to fraction form
381,704,947.80/572,557,421.70 = 177,165,043.80/x - Step 3: Cross multiply
381,704,947.80x = 572,557,421.70 × 177,165,043.80 - Step 4: Simplify right side
381,704,947.80x = 101,437,160,693,495,584 - Step 5: Solve for x
x = 101,437,160,693,495,584/381,704,947.80 - Step 6: Final answer
x = 265,747,565.70
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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.