Finding the Fourth Proportional to 127,638,264.18, 191,312,163.99 and 77,672,884.35
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Solution
The fourth proportional to 127,638,264.18, 191,312,163.99 and 77,672,884.35 is: 116,420,946.99
Step by Step Solution
- Step 1: Write the proportion equation
127,638,264.18 : 191,312,163.99 = 77,672,884.35 : x - Step 2: Convert to fraction form
127,638,264.18/191,312,163.99 = 77,672,884.35/x - Step 3: Cross multiply
127,638,264.18x = 191,312,163.99 × 77,672,884.35 - Step 4: Simplify right side
127,638,264.18x = 14,859,767,588,343,504 - Step 5: Solve for x
x = 14,859,767,588,343,504/127,638,264.18 - Step 6: Final answer
x = 116,420,946.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.