Finding the Fourth Proportional to 122,527,477.98, 169,087,949.55 and 66,772,914.84
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Solution
The fourth proportional to 122,527,477.98, 169,087,949.55 and 66,772,914.84 is: 92,146,638.79
Step by Step Solution
- Step 1: Write the proportion equation
122,527,477.98 : 169,087,949.55 = 66,772,914.84 : x - Step 2: Convert to fraction form
122,527,477.98/169,087,949.55 = 66,772,914.84/x - Step 3: Cross multiply
122,527,477.98x = 169,087,949.55 × 66,772,914.84 - Step 4: Simplify right side
122,527,477.98x = 11,290,495,255,772,368 - Step 5: Solve for x
x = 11,290,495,255,772,368/122,527,477.98 - Step 6: Final answer
x = 92,146,638.79
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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.