Finding the Fourth Proportional to 13,307,089.46, 18,363,770.62 and 7,195,503.38
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Solution
The fourth proportional to 13,307,089.46, 18,363,770.62 and 7,195,503.38 is: 9,929,787.72
Step by Step Solution
- Step 1: Write the proportion equation
13,307,089.46 : 18,363,770.62 = 7,195,503.38 : x - Step 2: Convert to fraction form
13,307,089.46/18,363,770.62 = 7,195,503.38/x - Step 3: Cross multiply
13,307,089.46x = 18,363,770.62 × 7,195,503.38 - Step 4: Simplify right side
13,307,089.46x = 132,136,573,455,947.08 - Step 5: Solve for x
x = 132,136,573,455,947.08/13,307,089.46 - Step 6: Final answer
x = 9,929,787.72
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1.5x scale
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.