Finding the Fourth Proportional to 147,646,998.60, 221,470,497.90 and 113,209,621.80
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Solution
The fourth proportional to 147,646,998.60, 221,470,497.90 and 113,209,621.80 is: 169,814,432.70
Step by Step Solution
- Step 1: Write the proportion equation
147,646,998.60 : 221,470,497.90 = 113,209,621.80 : x - Step 2: Convert to fraction form
147,646,998.60/221,470,497.90 = 113,209,621.80/x - Step 3: Cross multiply
147,646,998.60x = 221,470,497.90 × 113,209,621.80 - Step 4: Simplify right side
147,646,998.60x = 25,072,591,307,116,696 - Step 5: Solve for x
x = 25,072,591,307,116,696/147,646,998.60 - Step 6: Final answer
x = 169,814,432.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.