Finding the Fourth Proportional to 68,406,272.91, 94,402,184.72 and 39,037,020.75
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Solution
The fourth proportional to 68,406,272.91, 94,402,184.72 and 39,037,020.75 is: 53,871,960.67
Step by Step Solution
- Step 1: Write the proportion equation
68,406,272.91 : 94,402,184.72 = 39,037,020.75 : x - Step 2: Convert to fraction form
68,406,272.91/94,402,184.72 = 39,037,020.75/x - Step 3: Cross multiply
68,406,272.91x = 94,402,184.72 × 39,037,020.75 - Step 4: Simplify right side
68,406,272.91x = 3,685,180,043,564,788 - Step 5: Solve for x
x = 3,685,180,043,564,788/68,406,272.91 - Step 6: Final answer
x = 53,871,960.67
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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.