Finding the Fourth Proportional to 12,817,765.98, 17,688,073.68 and 7,312,922.96
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Solution
The fourth proportional to 12,817,765.98, 17,688,073.68 and 7,312,922.96 is: 10,091,580.72
Step by Step Solution
- Step 1: Write the proportion equation
12,817,765.98 : 17,688,073.68 = 7,312,922.96 : x - Step 2: Convert to fraction form
12,817,765.98/17,688,073.68 = 7,312,922.96/x - Step 3: Cross multiply
12,817,765.98x = 17,688,073.68 × 7,312,922.96 - Step 4: Simplify right side
12,817,765.98x = 129,351,520,044,203.33 - Step 5: Solve for x
x = 129,351,520,044,203.33/12,817,765.98 - Step 6: Final answer
x = 10,091,580.72
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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.